CN100390737C - Method for automatically updating and backing up BIOS - Google Patents

Abstract

The invention relates to a method for automatically updating and backing up BIOS, which is applied to an information device and comprises the steps of receiving a BIOS file transmitted by an electronic device through a wireless transmission device of the information device, comparing identification codes of the BIOS file to determine whether the BIOS file is correct and is the latest version, storing the BIOS file to a starting area if the BIOS file is correct and is the latest version, restarting the information device to determine whether the updated BIOS can be normally started, further updating the BIOS file in the backup area if the updated BIOS can be normally started, and copying a BIOS program code in the backup area to the starting area if the BIOS file cannot be normally started so as to rescue the BIOS file.

Description

How to update and backup BIOS automatically

technical field

The present invention relates to a method for automatically updating and backing up BIOS, in particular to a method for automatically updating and backing up BIOS applied to an information device to update BIOS files through wireless transmission.

Background technique

BIOS is the abbreviation of Basic Input & Output System (Basic Input & Output System). It is a piece of firmware stored in a read-only memory, and the basic input and output system is also a necessary condition for starting a computer normally. When starting the computer, the microprocessor first checks whether each basic device on the motherboard, display card and other devices is normal according to the content of the BIOS program, and then passes the control right to the operating system to perform working normally. By rewriting the contents of the BIOS, the purpose of improving device performance and compatibility can be achieved. Because the BIOS is the lowest basic part of the entire computer or information device's architecture, it plays a very important role, so once an error occurs in the BIOS, the consequences will become quite serious.

After a computer or other information device has been used for a while, it may be necessary to purchase new peripheral equipment (for example: upgrade CPU, memory, etc.) due to the need for upgrades, but sometimes it is found that after purchasing new equipment and installing it on the information device Afterwards, it is found that the information of the peripheral equipment cannot be detected. Generally speaking, this situation may be due to the BIOS version of your information device, which cannot support the new peripheral equipment. At this time, you can solve this problem by updating the BIOS. question. In addition to the above-mentioned reasons, manufacturers of information devices may also release new versions of the BIOS to correct product problems or solve compatibility problems with other products.

Existing known methods for updating the BIOS, in addition to being performed by CDs or disks, and due to the development of the Internet, users often go to the original manufacturer to download the latest BIOS files and update them, but the above methods are all Personal operation can be applied to a single information device. If the information management personnel of a company or enterprise or the manufacturing plant of an information device needs to update the BIOS of multiple information devices at the same time, the conventional method is obviously uneconomical and inefficient. .

This shows that the above-mentioned existing method for updating the BIOS clearly still has inconvenience and defects in method and use, and needs to be further improved urgently. In order to solve the problems existing in the method of updating the BIOS, the relevant manufacturers have tried their best to find a solution, but no suitable design has been developed for a long time, and the general method has no suitable method to solve the above problems. Obviously, it is a problem that relevant industry players are eager to solve.

In view of the defects in the above-mentioned existing methods of updating and backing up BIOS, the inventor actively researches and innovates based on years of rich practical experience and professional knowledge engaged in the design and manufacture of such products, and cooperates with the application of academic theories, in order to create a The new method for automatically updating and backing up the BIOS can improve the general existing methods for updating and backing up the BIOS, making it more practical. Through continuous research, design, and after repeated trials and improvements, the present invention with practical value is finally created.

Contents of the invention

The purpose of the present invention is to overcome the defects in the existing method for updating BIOS, and provide a new method for automatically updating and backing up BIOS. The technical problem to be solved is to make it convenient by wireless transmission, by An electronic device capable of wirelessly transmitting BIOS files, updating and backing up BIOS files for information devices located within the receiving range of the wireless transmission signal of the electronic device, so as to solve the conventional inconvenience of updating BIOS with physical connection, thereby more Suitable for practical use.

The purpose of the present invention and the solution to its technical problems are achieved by adopting the following technical solutions. A method for automatically updating and backing up BIOS according to the present invention is applied to an information device, and receives a BIOS file transmitted by an electronic device through a wireless transmission device and updates and backs it up, which includes the following steps : Receive a BIOS file through the wireless transmission device of the information device; compare whether the BIOS file is correct; when the BIOS file is correct, write the BIOS update code of the BIOS file into the system startup area of the information device; When the BIOS file is incorrect, end the BIOS update program; execute the first boot program; when the first boot program can boot successfully, copy the BIOS update code in the system boot area to a BIOS backup area; when the first boot program When the program fails, copy the BIOS program code in the BIOS backup area to the system boot area; and when the BIOS program code in the BIOS backup area is copied to the system boot area, execute the second boot program.

The purpose of the present invention and its technical problems can also be further realized by adopting the following technical measures.

In the aforementioned method for automatically updating and backing up the BIOS, the wireless transmission device is an infrared transmission device or a wireless transmission device with Bluetooth protocol.

The aforementioned method for automatically updating and backing up BIOS, wherein the wireless transmission device is a wireless transmission device with a wireless network protocol.

In the aforementioned method for automatically updating and backing up BIOS, the BIOS file at least includes an identification code and a BIOS update code.

The aforementioned method for automatically updating and backing up the BIOS, wherein the identification code includes a machine identification code and a BIOS ID.

The aforementioned method for automatically updating and backing up the BIOS, wherein the identification code is a BIOS ID.

In the aforementioned method for automatically updating and backing up the BIOS, after the step of copying the BIOS update code in the system boot area to a BIOS backup area is completed, a step of generating update completion information can be further performed.

In the aforementioned method for automatically updating and backing up the BIOS, after the step of executing the second boot program is completed, a step of displaying that the update has not been completed can be further executed.

The purpose of the present invention and the solution to its technical problems are also achieved by the following technical solutions. According to the method of a kind of BIOS backup and rescue proposed by the present invention, it is applied in an information device, and continues to execute after receiving a correct BIOS file, which includes the following steps: write the BIOS update code of the BIOS file into the data The system boot area of the device; execute the first boot program; when the first boot program can be successfully booted, copy the BIOS update code in the system boot area of the information device to a BIOS backup area; when the first boot program fails , copying the BIOS program code in the BIOS backup area to the system boot area; and executing the second boot program after the BIOS program code in the BIOS backup area is copied to the system boot area.

The purpose of the present invention and its technical problems can also be further realized by adopting the following technical measures.

In the aforementioned BIOS backup and rescue method, after the step of copying the BIOS update code in the system boot area to a BIOS backup area is completed, a step of generating update completion information can be further performed.

In the aforementioned BIOS backup and rescue method, after the step of executing the second boot program is completed, a step of displaying that the update has not been completed can be further executed.

Compared with the prior art, the present invention has obvious advantages and beneficial effects. As can be seen from the above technical solutions, in order to achieve the aforementioned object of the invention, the main technical contents of the present invention are as follows:

The present invention provides a method for automatically updating and backing up BIOS, which is applied to an information device, and receives and updates and backs up a BIOS file transmitted by an electronic device through a wireless transmission device, which includes the following steps: using the information device The wireless transmission device receives a BIOS file; compares whether the BIOS file is correct; when the BIOS file is correct, writes the BIOS update code of the BIOS file into a system boot area; when the BIOS file is incorrect, terminates the BIOS update program; execute the first boot program; when the first boot program can boot successfully, copy the BIOS update code in the system boot area to a BIOS backup area; when the first boot program fails, copy the BIOS update code in the BIOS backup area The BIOS program code is stored in the system boot area; when the BIOS program code in the BIOS backup area is copied to the system boot area, the second boot program is executed.

The wireless transmission device may be an infrared transmission device, a wireless transmission device with a Bluetooth protocol, a wireless transmission device with a wireless network protocol, or other radio frequency communication devices. When the wireless transmission device used is an infrared transmission device or a wireless transmission device with a Bluetooth protocol, the infrared transmission and the Bluetooth protocol have a specific correspondence between the communication devices of the two structures in terms of specifications, that is, the two devices for transmission They are all specific. For example, infrared transmission is carried out in a one-to-one manner, while the Bluetooth protocol can be a one-to-seven separate correspondence. The BIOS file to be transmitted at this time, in addition to including the BIOS update code, also includes an identification code, and the identification code generally includes a machine identification code and a BIOS ID (BIOS version), but when the two devices to be transferred are both Therefore, the machine identification code of the identification code can be omitted, and only a BIOS ID can be used.

When the wireless transmission device used is a wireless transmission device with a wireless network protocol or other radio frequency transmission transmission device, it is carried out in a broadcasting manner, that is, between the electronic device for transmission and each information device, as long as the communication With the same protocol or the same communication format, one-to-many synchronous connection can be carried out. Therefore, when it is applied to multiple information devices for BIOS update, it can exempt from the limitation of specific correspondence before transmission. Therefore, the application will be more convenient. However, because there are many types of information devices that will receive the wireless transmission signal, the transmitted BIOS file must include a machine identification code and a BIOSID in addition to the BIOS update code.

Moreover, in order to generate a wireless signal of a BIOS file, the present invention provides an electronic device capable of wirelessly transmitting a BIOS file, which includes: a memory unit for storing at least one set of BIOS files; a computing unit for operating A BIOS file to be transmitted; a wireless transmission device used to transmit the BIOS file specified by the computing unit; and an I/O port module used as an interface between the computing unit and the wireless transmission device.

From the above, it can be known that the present invention relates to a method for automatically updating and backing up BIOS, which is applied to an information device, which uses the wireless transmission device of the information device to receive a BIOS file transmitted by an electronic device, and then compares the The identification code of the BIOS file, to determine whether the BIOS file is correct and the latest version, if the BIOS file is correct and the latest, then the BIOS file is stored in the boot area, and then the information device is restarted to confirm that after the update If the BIOS can be started normally, the BIOS file in the backup area will be further updated if it can be started normally. If it cannot be started normally, the BIOS program code in the backup area will be copied to the boot area to rescue the BIOS file.

By means of the above technical solution, the method for automatically updating and backing up the BIOS of the present invention has at least the following advantages:

1. Through the implementation of the present invention, the function of transferring BIOS files without wired connection can be achieved.

2. With the implementation of the present invention, the BIOS file update of many information devices can be completed quickly and conveniently.

3. Through the implementation of the present invention, the BIOS program code update of many or a large number of information devices can be processed at the same time without physical connection, so the efficiency of the BIOS program code update operation can be greatly improved.

In summary, the special method for automatically updating and backing up the BIOS of the present invention, through the convenience of wireless transmission, uses an electronic device that can wirelessly transmit BIOS files, and is located within the acceptable range of the wireless transmission signal of the electronic device. The information device can be used to update and back up the BIOS files, which can solve the conventional inconvenience of updating the BIOS through a physical connection. It has the above-mentioned many advantages and practical value, and there is no similar design published or used in similar methods, so it is indeed an innovation. It has great improvements in both methods and functions, and has a relatively large technical advantage. Great progress, and produced easy-to-use and practical effects, and compared with the existing method of updating the BIOS, it has improved multiple functions, so it is more suitable for practical use, and has wide application value in the industry. It is a novelty and progress. , Practical new design.

The above description is only an overview of the technical solution of the present invention. In order to understand the file of the present invention more clearly, in addition to the BIOS update code, the identification code must include a machine identification code and a BIOSID.

Moreover, in order to generate a wireless signal of a BIOS file, the present invention provides an electronic device capable of wirelessly transmitting a BIOS file, which includes: a memory unit for storing at least one set of BIOS files; a computing unit for operating A BIOS file to be transmitted; a wireless transmission device used to transmit the BIOS file specified by the computing unit; and an I/O port module used as an interface between the computing unit and the wireless transmission device.

From the above, it can be known that the present invention relates to a method for automatically updating and backing up BIOS, which is applied to an information device, which uses the wireless transmission device of the information device to receive a BIOS file transmitted by an electronic device, and then compares the The identification code of the BIOS file, to determine whether the BIOS file is correct and the latest version, if the BIOS file is correct and the latest, then the BIOS file is stored in the boot area, and then the information device is restarted to confirm that after the update If the BIOS can be started normally, the BIOS file in the backup area will be further updated if it can be started normally. If it cannot be started normally, the BIOS program code in the backup area will be copied to the boot area to rescue the BIOS file.

By means of the above technical solution, the method for automatically updating and backing up the BIOS of the present invention has at least the following advantages:

1. Through the implementation of the present invention, the function of transferring BIOS files without wired connection can be achieved.

2. With the implementation of the present invention, the BIOS file update of many information devices can be completed quickly and conveniently.

3. Through the implementation of the present invention, the BIOS program code update of many or a large number of information devices can be processed at the same time without physical connection, so the efficiency of the BIOS program code update operation can be greatly improved.

In summary, the special method for automatically updating and backing up the BIOS of the present invention, through the convenience of wireless transmission, uses an electronic device that can wirelessly transmit BIOS files, and is located within the acceptable range of the wireless transmission signal of the electronic device. The information device can be used to update and back up the BIOS files, which can solve the conventional inconvenience of updating the BIOS through a physical connection. It has the above-mentioned many advantages and practical value, and there is no similar design published or used in similar methods, so it is indeed an innovation. It has great improvements in both methods and functions, and has a relatively large technical advantage. Great progress, and produced easy-to-use and practical effects, and compared with the existing method of updating the BIOS, it has improved multiple functions, so it is more suitable for practical use, and has wide application value in the industry. It is a novelty and progress. , Practical new design.

The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable , the following preferred embodiments are specifically cited below, and are described in detail as follows in conjunction with the accompanying drawings.

The above description is only an overview of the technical solutions of the present invention. In order to understand the technical means of the present invention more clearly and implement them according to the contents of the description, the preferred embodiments of the present invention and accompanying drawings are described in detail below.

Description of drawings

Figure 1 is a diagram of an application example of the present invention.

FIG. 2 is a flowchart of an embodiment of a method for automatically updating and backing up a BIOS.

FIG. 2A is an embodiment of a method for automatically updating a BIOS.

FIG. 2B is an embodiment of a BIOS backup and rescue method.

FIG. 3 is an embodiment of a first BIOS file stored in the memory unit of the electronic device.

FIG. 4 is an embodiment of a second BIOS file stored in the memory unit of the electronic device.

FIG. 5 is a block diagram of an embodiment of an electronic device capable of wirelessly transmitting BIOS files.

11, 12, 13...: information devices

20: Electronic device

21: memory unit

22: Operation unit

23: I/O port module

24: Wireless transmission device

31: machine identification code

32: BIOS ID

33: BIOS update code

34: Identification code

Step S1: Receive a BIOS file

Step S2: Check whether the BIOS file is correct

Step S3: Write the BIOS file into the system boot area

Step S4: End the BIOS update program

Step S5: Execute the first boot procedure;

Step S6: Copy the BIOS update code to the BIOS backup area

Step S7: Copy the BIOS program code to the system boot area

Step S8: Execute the second boot procedure

Step S9: Generate update completion information

Step S10: Display update not completed

Detailed ways

In order to further explain the technical means and effects that the present invention adopts to achieve the intended purpose of the invention, the specific implementation methods, methods and steps of the method for automatically updating and backing up BIOS proposed according to the present invention will be described below in conjunction with the accompanying drawings and preferred embodiments. , features and their effects are described in detail below.

Please refer to FIG. 1, which is a diagram of an application embodiment of the present invention, wherein these information devices 11, 12, 13... are located in an electronic device 20, and a plurality of information devices 11, 12, 13..., these information devices 11, 12, 13... can be any kind of information devices with BIOS and capable of BIOS update, such as notebook computers, servers, desktop computers.. . and other product categories of information devices, and may also be machines of the same product category but different models or models. For example, the notebook computers of Acer Computer Company include TravelMate 3200, TravelMate4000, TravelMate8000, TravelMate370, TravelMate380... and other models and Models, and the HP Integrity server family of Hewlett-Packard's servers can also be distinguished into different models such as rx5670, rx8620, rx76270, etc. Therefore, when updating the BIOS, the BIOS file must be identified by the identification code. The machine identification code is used to distinguish the same model, because the BIOS version will be continuously updated, so there will also be differences in versions. For example, TravelMate 3200 may have different versions such as 3A01, 3A02, 3A03, etc., so it must be Distinguished by BIOS ID.

The correspondence and distance relationship between these information devices 11, 12, 13... and the electronic device 20 are different depending on the wireless transmission device 24 selected. For example, when the selected wireless transmission device 24 is an infrared transmission device Or a wireless transmission device with bluetooth protocol, at this time, there is a specific corresponding and short-distance transmission relationship between the two transmitting. For another example, when the selected wireless transmission device 24 is a wireless transmission device with a wireless network protocol or other radio frequency transmission transmission device, then between the two transmitting at this time, it is a broadcasting and long-distance transmission correspondence relation.

<method embodiment>

Please refer to FIG. 2, which is a flow chart of the steps of an embodiment of a method for automatically updating and backing up BIOS, which is applied to an information device, and receives a BIOS file transmitted by an electronic device through a wireless transmission device and updates it. To be updated and backed up, it includes the following steps: receiving a BIOS file, and receiving it through the wireless transmission device of the information device (step S1); comparing whether the BIOS file is correct (step S2); updating the BIOS of the BIOS file code is written into a system boot area, when the BIOS file is correct (step S3); end the BIOS update program, when the BIOS file is incorrect (step S4); execute the first boot program (step S5); copy the system startup The BIOS update code in the area is transferred to a BIOS backup area, when the first boot program can be successfully started (step S6); the BIOS program code in the BIOS backup area is copied to the system boot area, when the first boot program fails (step S6); Step S7); Execute the second boot program, when the BIOS program code in the BIOS backup area is copied to the system boot area (Step S8).

In order to allow users to understand the status of relevant updates and backup operations more clearly, in the method for automatically updating and backing up the BIOS, step S6 of "copying the BIOS update code in the system boot area to a BIOS backup area" is executed After completion, a step of "generating update completion information" (step S9) can be further performed to inform the user that the relevant BIOS update and backup operations have been completed. And after step S8 "executing the second boot procedure" is completed, a step of "display update not completed" (step S10) can be further performed to inform the user that the relevant BIOS update and backup operations have not been completed.

Please refer to FIG. 2A, which is an embodiment of a method for automatically updating the BIOS, which is applied to an information device, and receives and updates the BIOS file transmitted by an electronic device through a set of wireless transmission devices. It includes the following steps: receiving a BIOS file, and receiving it through the wireless transmission device of the information device (step S1); comparing whether the BIOS file is correct (step S2); writing the BIOS update code of the BIOS file into a system boot area, when the BIOS file is correct (step S3); end the BIOS update procedure, when the BIOS file is incorrect (step S4).

Please refer to FIG. 2B, which is a method embodiment of BIOS backup and rescue, which is applied in an information device, and continues to execute after receiving a correct BIOS file, which includes the following steps: Execute the first boot program ( Step S5); Copy the BIOS update code of the system boot area to a BIOS backup area, when the first boot program can start successfully (step S6); copy the BIOS program code of the BIOS backup area to the system boot area, when When the first boot procedure fails (step S7); execute the second boot procedure, when the BIOS program code in the BIOS backup area is copied to the system boot area (step S8).

Please refer to FIG. 3 , which is an embodiment of the first BIOS file stored in the memory unit of the electronic device, wherein the memory unit 21 stores at least one set of BIOS files, and it can be applied to the wireless transmission device 24 used as In the case of an infrared transmission device or a wireless transmission device with a Bluetooth protocol, because the infrared transmission and the Bluetooth protocol have a specific correspondence between the communication devices of the two structures, that is, the two devices for transmission are specific, so it can be The part of machine identification is exempted, so the transmitted BIOS file includes a BIOS update code 33 and an identification code 34, and the identification code 34 is a BIOS ID 32.

Please refer to FIG. 4, which is an embodiment of a second BIOS file stored in the memory unit of the electronic device, wherein the memory unit 21 stores at least one set of BIOS files, and it can be applied to the wireless transmission device 24 used. When it is a wireless transmission device with a wireless network protocol or other radio frequency transmission transmission device, because it transmits in a broadcasting manner, between the electronic device 20 for transmission and each information device 11, 12, 13..., It is not a specific correspondence relationship, it may be a one-to-many synchronous configuration. At this time, because the general types of these information devices 11, 12, 13... are various, the BIOS file to be transmitted, in addition to including the BIOS update code 33, the identification code 34 must include a machine identification code 31 and a BIOS ID 32.

When performing the BIOS update operation of this embodiment, first the user can select a BIOS file to be updated in the electronic device 20, and send it through a wireless transmission device with a wireless network protocol, and the BIOS file includes There is a machine identification code 31, a BIOS ID 32 and a BIOS update code 33, such as TravelMate 3200, 3A03, ZA1E3A03.WPH of Hong Computer Company.

When all the information devices 11, 12, 13... within the receiving range of the wireless signal receive the wireless signal, the steps of the method embodiment shown in Figure 2 will then be performed, and in the steps of the method embodiment, the comparison The definition of whether the BIOS file is correct or not includes comparing the machine identification code 31 and BIOSID 32. Therefore, only TravelMate 3200 series machines whose original version of the BIOS file is an older version than the sender can confirm. Subsequent update steps will be carried out, for example, the original BIOS file version is 3A01 or 3A02 (the old and new versions are determined by the size of the number, and the version with a larger number is the new version).

After the comparison of the BIOS file is correct, the BIOS update code 33 of the BIOS file will be written into a system boot area, and the system boot area is the first to be loaded when the information device 11, 12, 13... is turned on. Enter the BIOS area, at this time the BIOS update procedure has been completed. In order to ensure that the updated BIOS update code 33 can be executed, a first boot program is executed. If it can be turned on normally, it means that the BIOS update code 33 can work normally. At this time, the BIOS update code 33 can be copied to a computer again. BIOS backup area, and the BIOS backup area is used to store a correct and executable BIOS program code, so that it can be used for rescue when the BIOS update program fails or other problems cause the BIOS program code in the system boot area to fail to execute .

If the first boot program fails to boot normally, it means that the BIOS update code 33 may have an error, for example, some data is lost during wireless transmission. At this time, the system will copy the BIOS program code stored in the BIOS backup area to this System boot area to achieve the rescue effect, because the BIOS program codes stored in the BIOS backup area have all passed the boot verification, so the execution of the second boot program is completed, and the information devices 11, 12, 13... are restored. normal work.

When the wireless transmission device 24 used is an infrared transmission device or a wireless transmission device with Bluetooth protocol, its implementation steps are described in the above-mentioned manner, except for comparing whether the BIOS file is a correct definition, only including comparing the BIOS ID The part of 32 is not the same, the rest are the same, so no more details.

<Device embodiment>

Please refer to FIG. 5 , which is a block diagram of an embodiment of an electronic device capable of wirelessly transmitting BIOS files, which is used to generate a wireless signal of a BIOS file, which includes: a memory unit 21 for storing at least one set of BIOS files ; A computing unit 22 for operating a desired BIOS file for transmission; a wireless transmission device 24 for transmitting the BIOS file specified by the computing unit 22; and an I/O port module 23 for the computing The interface between the unit 22 and the wireless transmission device 24 .

The wireless transmission device 24 can be one of an infrared transmission device, a wireless transmission device with Bluetooth protocol, a wireless transmission device with wireless network protocol or other radio frequency transmission devices. The BIOS file can include an identification code 34 and a BIOS update code 33, and the identification code 34 can include a machine identification code 31 and a BIOS ID 32 or only a BIOS ID 32, depending on the selected wireless transmission Device 24 depends.

The technical innovation of the method for automatically updating and backing up the BIOS of the present invention constituted above all has many advantages for the technicians in the same industry, and indeed has technological advancement.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone familiar with this field Those skilled in the art, without departing from the scope of the technical solution of the present invention, can use the method and technical content disclosed above to make some changes or modifications to equivalent embodiments with equivalent changes, but any content that does not depart from the technical solution of the present invention, Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solutions of the present invention.

Claims (11)

1. A method for automatically updating and backing up BIOS, applied in an information device, through a wireless transmission device, to receive a BIOS file transmitted by an electronic device and to update and back it up, characterized in that it includes the following steps : receiving a BIOS file through the wireless transmission device of the information device; Compare whether the BIOS file is correct; When the BIOS file is correct, write the BIOS update code of the BIOS file into the system boot area of the information device; When the BIOS file is incorrect, end the BIOS update procedure; Execute the first boot procedure; When the first boot program can boot successfully, copy the BIOS update code in the system boot area to a BIOS backup area; When the first boot procedure fails, copy the BIOS program code in the BIOS backup area to the system boot area; and After the BIOS program code in the BIOS backup area is copied to the system boot area, the second boot program is executed. 2. The method for automatically updating and backing up BIOS according to claim 1, wherein said wireless transmission device is an infrared transmission device or a wireless transmission device with Bluetooth protocol. 3. The method for automatically updating and backing up BIOS according to claim 1, wherein said wireless transmission device is a wireless transmission device with a wireless network protocol. 4. The method for automatically updating and backing up BIOS according to claim 1, wherein said BIOS file at least includes an identification code and a BIOS update code. 5. The method for automatically updating and backing up BIOS according to claim 4, wherein said identification code comprises a machine identification code and a BIOS ID. 6. The method for automatically updating and backing up the BIOS according to claim 4, wherein said identification code is a BIOS ID. 7. The method for automatically updating and backing up the BIOS according to claim 1, wherein after the step of copying the BIOS update code in the system boot area to a BIOS backup area is completed, a further step can be performed. Steps that generate update completion information. 8. The method for automatically updating and backing up BIOS according to claim 1, wherein after the step of executing the second boot program is completed, a step of displaying that the update is not completed can be further executed. 9. A method for BIOS backup and rescue, which is applied in an information device and continues to execute after receiving a correct BIOS file, is characterized in that it includes the following steps: writing the BIOS update code of the BIOS file into the system boot area of the data device; Execute the first boot procedure; When the first boot program can be booted successfully, copy the BIOS update code in the system boot area of the information device to a BIOS backup area; When the first boot procedure fails, copy the BIOS program code in the BIOS backup area to the system boot area; and After the BIOS program code in the BIOS backup area is copied to the system boot area, the second boot program is executed. 10. The method for BIOS backup and rescue according to claim 9, characterized in that after the step of copying the BIOS update code in the system boot area to a BIOS backup area is completed, a step of generating Update the steps to complete the information. 11. The BIOS backup and rescue method according to claim 9, wherein after the step of executing the second boot program is completed, a step of displaying that the update is not completed can be further executed.

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