CN1314290C - Method and mobile communication device for recovering operation function of temporarily disabled subscriber identification card - Google Patents

Abstract

A method and mobile communication device for recovering operation function of temporarily disabled SIM card are provided. The SIM card is arranged in a mobile phone body. The mobile phone body records a code verification state of the SIM card. When the code verification state is that the verification is required, the mobile phone body records an original PIN/PUK code corresponding to the SIM card. First, a SIM card start-up procedure is executed. Then, whether the state of the PIN/PUK code which needs to be verified by the SIM card is consistent with the code verification state recorded by the mobile phone body or not is judged, and whether a read PIN/PUK code which is read again from the SIM card is the same as the original PIN/PUK code recorded by the mobile phone body or not is judged. And then, judging whether the read IMSI value read again from the SIM card is the same as the original IMSI value, and if so, recovering the use of the SIM card again.

Description

Method and mobile communication device for restoring operation function of temporarily disabled subscriber identification card

technical field

The invention relates to a method for restoring the operation function of a SIM card and a mobile communication device, in particular to a method for restoring the operation function of a temporarily disabled SIM card and a mobile communication device.

Background technique

A general mobile phone is composed of a mobile phone body (Mobile Equipment, ME) and a Subscriber Identity Module (SIM) card. The SIM card is configured in the body of the mobile phone. In a mobile phone communication system, such as the Global System for Mobile communication (GSM), the phone number information of the mobile phone is recorded in the SIM card. The SIM card is issued to the user by the mobile phone service provider. When the SIM card is inserted into the slot of the mobile phone body, and after the mobile phone body is turned on, the mobile phone body immediately activates the SIM card to enable the mobile phone to obtain mobile network services.

However, after the mobile phone is turned on and can operate normally, it may be caused by (1) static electricity; (2) the mechanism for fixing the SIM card is not firm, resulting in poor contact of the SIM card; or (3) any external force that causes the SIM card to fail. The operation performed by the SIM card is invalid. At this time, the mobile phone body cannot operate the SIM card or access the data on the SIM card by controlling the command of the SIM card.

Although the period of SIM card failure may be very short, however, if you want to restart the SIM card, you must turn off the mobile phone (Power Off) and then restart (Power On) to restore the original operating function of the SIM card . But the action of shutting down and starting up is very inconvenient and time-consuming for mobile phone users.

Contents of the invention

In view of this, the purpose of the present invention is to provide a method and a mobile communication device for restoring the operating function of a temporarily disabled SIM card. Restore the operating functions of the SIM card.

According to the purpose of the present invention, a kind of method that makes the temporarily disabled Subscriber Identity Module (Subscriber Identity Module, SIM) card resume operation function is proposed. The SIM card is configured in a mobile phone body (Mobile Equipment, ME), and the mobile phone body records an original IMSI value and a code verification status of the SIM card. The code verification status includes two statuses that require verification and do not need verification. When the code verification status is required to be verified, the mobile phone body will record an original personal identification code/unlock code (PIN/PUK code: Personal Identification Number/PINUnlock Key) corresponding to the SIM card. The method of the present invention includes: (a) executing a SIM card activation program; (b) judging whether the SIM card in the mobile phone body needs to verify the PIN/PUK code, if so, then enter step (c), if not, then enter Step (e); (c) when the code verification status needs to be verified, then enter step (d); (d) read the PIN/PUK code by the SIM card in the mobile phone body, and compare the read PIN/PUK code. When the PIN/PUK code is the same as the original PIN/PUK code, enter step (f); (e) when the verification status of the code is no verification, enter step (f); (f) read the mobile One reads the IMSI value of the SIM card in the phone body; (g) compares the read IMSI value and the original IMSI value, and when identical, then executes the next step; (h) resumes using the SIM card.

In order to make the above-mentioned purpose, features, and advantages of the present invention more comprehensible, a preferred embodiment is specifically cited below, and is described in detail with reference to the accompanying drawings.

Description of drawings

Fig. 1 and Fig. 2A～2C have shown the flow chart of a kind of method that makes temporarily disabled Subscriber Identity Module (Subscriber Identity Module, SIM) card resume operation function according to a preferred embodiment of the present invention, wherein, Fig. 1 2A-2C show the steps performed after the SIM card is temporarily disabled.

Explanation of reference numbers

102～110, 202～240: method flow

Detailed ways

Please refer to FIG. 1 and FIGS. 2A-2C, which show a flow chart of a method for resuming operating functions of a temporarily disabled Subscriber Identity Module (SIM) card according to a preferred embodiment of the present invention. The method for recovering the operation function of a temporarily disabled SIM card is applicable to a mobile communication device, and the mobile communication device includes a mobile phone body and a SIM card configured on the mobile phone body. Wherein, FIG. 1 shows the steps performed by the mobile phone body in a normal operating state, and FIGS. 2A-2C show the steps performed by the mobile phone body after the SIM card is temporarily disabled.

Please refer to FIG. 1 , when the mobile phone is turned on and can be used normally, the mobile phone body will first perform the following steps. Preferably, the following steps can be executed at the same time when the mobile phone body executes the booting procedure. First, in step 102, the mobile phone body judges whether the personal identification number (Personal Identification Number, PIN)/unlock code (PIN Unlock Key, PUK) needs to be verified, and if so, then enters step 104. If not, go to step 106 . Wherein, the PIN code is used to identify the identity of the user. After the user turns on the mobile communication device, he must first input the PIN code before making a call. After the PIN code is set, the mobile communication device can be prevented from being stolen. If the wrong PIN code is input 3 times continuously, the SIM card will be locked automatically. At this time, the user must contact the telecommunications system operator immediately to unlock the SIM card with the PUK code.

In step 104, the mobile phone body records the "status requiring verification of the PIN/PUK code" of the SIM card in the mobile phone body. That is to say, the body of the mobile phone records a verification status of a code, and the verification status of the code is a status requiring verification. Then enter step 108, the mobile phone body records the PIN/PUK code of the SIM card at this time as an original PIN/PUK code in the mobile phone body. The original PIN/PUK code is the correct PIN code input by the user after the mobile communication device is turned on. If the user changes the PIN code of the SIM card after the mobile communication device is turned on, the mobile phone body must re-record the reset PIN code.

In step 106, the mobile phone body records the "state that does not need to verify the PIN/PUK code" of the SIM card in the mobile phone body. That is to say, the code verification status recorded in the body of the mobile phone is a status that does not require verification. After steps 106 and 108, step 110 is executed, and the mobile phone body reads the original International Mobile Subscriber Identity (IMSI) elementary file (Elementary File) EF_IMSI to obtain the IMSI value of the SIM card. The mobile phone body records the IMSI value of the SIM card as an original IMSI value in the mobile phone body. Among them, the IMSI value records the country code (Mobile Country Code, MCC), network code (Mobile Network Code, MNC) and other network-related information.

Please refer to Figures 2A to 2C. When the mobile phone body detects that the SIM card has failed due to static electricity, or has failed due to poor electrical contact due to loose fixation, or has failed due to other external factors, the mobile phone body will Perform the following steps to restore the SIM card to operation. First, step 202 is executed to set initial values of a first repetition parameter F1 and a second repetition parameter F2 to zero. Then, enter step 204, judge whether the value of the first repetition times F1 is greater than 3, if so, then enter step 240, judge that the original SIM card system has been removed, or may have been replaced with another SIM card instead of the original SIM card SIM card, or this SIM card has been damaged and can no longer be used; if not, then enter step 206.

In step 206, the value of the first repetition number parameter F1 is increased by 1. Afterwards, step 208 is executed to determine whether the value of the second repetition times parameter F2 is less than 3, and if so, proceed to step 210; if not, proceed to step 240 to determine that the SIM card has been removed or damaged. The comparison of the values of the first and second repetition times parameters F1 and F2 with 3 is only an example of this embodiment, and the values of the first and second repetition times parameters F1 and F2 can also be compared with other specific values to determine The maximum number of times step 212 is repeated.

Afterwards, in step 210, the value of the second repetition times parameter F2 is increased by 1. Then, enter step 212, the mobile phone body executes a SIM card activation procedure, such as an Answer To Reset (ATR) procedure. The ATR program refers to the operation requirement parameters of the SIM card transmitted to the mobile phone body when the SIM card is activated. If necessary, the mobile phone body will also execute a protocol parameter selection (ProtoCol and Parameter Select, PPS) program. The PPS program is a program used by the mobile phone body to respond to the ATR program of the SIM card. The body of the mobile phone uses the PPS program to respond to the SIM card, and whether the body of the mobile phone accepts these operation requirement parameters.

Afterwards, go to step 214, and judge whether step 212 is executed successfully, if yes, go to step 216, if not, go back to step 208. In step 216, the mobile phone body judges whether the SIM card in the mobile phone body needs to verify the PIN/PUK code, if yes, then enter step 218, if not, then enter step 220. In step 218, the mobile phone body judges whether the status of the SIM card recorded in the mobile phone body is "need to verify the PIN/PUK code status", if so, then enter step 222; if not, then enter step 240. That is to say, when the code verification status is that verification is required, then enter step 222 . In step 222, read a read PIN/PUK code by the SIM card in the mobile phone body, and compare this read PIN/PUK code and the original PIN/PUK code that the mobile phone body records, when identical, then Go to step 224, if not, go to step 240.

In step 220, the mobile phone body judges whether the state of the SIM card recorded in the mobile phone body is "no need to verify the state of the PIN/PUK code", if so, then enter step 224, if not, then enter step 240. That is, when the code verification status does not need to be verified, then enter step 224. In steps 218 to 222, the mobile phone body first judges whether the state of the SIM card recorded by it is the same as the state before the SIM card becomes invalid, and then Judging whether the PIN/PUK codes are the same. As long as the result of the second judgment is different from that recorded on the mobile phone body, it is determined that the current SIM card system has been removed or damaged.

Then, in step 224, read a phase basic file (Phase ElementaryFile) EF_PHASE in the SIM card. The basic phase file EF_PHASE stores the phase level of the SIM card. The phase level of a general SIM card is divided into phase1, phase2 or phase2+. Phase1, phase2 and phase2+ SIM cards are applicable to GSM Phase I, Phase II and Phase II+ standards (standard) respectively. In the GSM Phase I and Phase II standards, the SIM card is a passive device (slave) for the mobile phone body, while in the GSM Phase II+ standard, the SIM card is a pro-active SIM card that can actively execute own application program, and direct the mobile phone body to perform related actions.

Then, go to step 226 to judge whether the phase base file EF_PHASE is read successfully, if yes, go to step 228, if not, go back to step 204. In step 228, it is judged whether the phase level (phase level) of the SIM card is phase2+, if so, then proceed to step 230, if not, then proceed to step 232. In step 230, the mobile phone body executes a profile download procedure (profile download procedure), and enters step 232 after the execution is completed. After the mobile phone body executes the feature download program, Phase II+SIM card can judge whether the mobile phone body can execute the application program of the SIM card itself, and make the mobile phone body perform related actions.

Afterwards, in step 232, re-read the IMSI basic file EF_IMSI of the SIM card to read a read IMSI value of the SIM card in the mobile phone body. Then, enter step 234, judge whether to read successfully, if yes, then proceed to step 236, if not, then return to step 204. In step 236, compare the read IMSI value read from the SIM with the original IMSI value recorded in the mobile phone body, when the same, then enter step 238, and resume using the SIM card; when not the same, then Enter step 240, determine that the original SIM card has been removed, or may have been replaced with another SIM card instead of the original SIM card, or the SIM card has been damaged and cannot be used anymore. Wherein, steps 224 to 230 may also be performed after steps 232 to 236 . The method and mobile communication device disclosed in the above-mentioned preferred embodiments to restore the operating function of the temporarily disabled SIM card can remedy the shortcomings of the hardware equipment of the mobile phone body, such as poor electrostatic protection design or insufficient SIM card fixing device Solid flaws. When the SIM card loses electrical connection with the mobile phone body and loses its function, the invention can quickly restore the original operating function of the SIM card electrically connected to the mobile phone body again. In addition, the present invention can quickly restore the operating function of the SIM card without affecting the normal operation of the mobile communication device by the user. The user can restore the operation function of the SIM card without restarting the mobile communication device, which greatly increases the convenience of use.

In summary, although the present invention has been disclosed as above with a preferred embodiment, it is not intended to limit the present invention. Those skilled in the art can make various changes without departing from the spirit and scope of the present invention. Changes and modifications, so the scope of protection of the present invention shall be based on the claims of the present invention.

Claims (14)

1. A method for recovering an operating function of a temporarily disabled SIM card, the SIM card is configured in a mobile phone body, and the mobile phone body records an original IMSI value and a code verification status of the SIM card, the code The verification state includes two states that need to be verified and do not need to be verified. When the code verification state is required to be verified, the mobile phone body will record an original personal identification code/unlock code corresponding to the SIM card. The method includes: (a) Execute a SIM card activation procedure; (b) judging whether the SIM card in the mobile phone body needs to verify the personal identification code/unlock code, if so, then enter step (c), if not, then enter step (e); (c) When the verification status of the code is required, proceed to step (d), otherwise end the method; (d) Read a personal identification code/unlock code from the SIM card in the mobile phone body, compare the read personal identification code/unlock code with the original personal identification code/unlock code, and when they are the same, enter Step (f), otherwise end the method; (e) When the verification status of the code is no verification required, enter step (f), otherwise end the method; (f) read a read IMSI value of the SIM card in the mobile phone body; (g) compare the read IMSI value with the original IMSI value, and when they are different, end the method, otherwise, if they are the same, perform the next step; and (h) resuming use of the SIM card. 2. the recovery method of SIM card operation function as claimed in claim 1, wherein in step (a) also comprises: (a1) Execute a recovery and reset procedure for sending at least one parameter on the SIM card to the mobile phone body; (a2) Executing a protocol parameter selection program for making the mobile phone body respond to whether the SIM card accepts the at least one parameter. 3. the recovery method of SIM card operating function as claimed in claim 2, wherein, in step (a2), if carry out this protocol parameter selection program failure, then repeat this step (a2) specific number of times; If carry out this step ( a2) After a certain number of failures, it is determined that the SIM card has been removed or damaged. 4. the recovery method of SIM card operation function as claimed in claim 2, wherein, in step (a1), if carry out this recovery resetting program failure, then repeat this step (a1) certain number of times; If carry out this step ( a1) After a certain number of failures, it is determined that the SIM card has been removed or damaged. 5. the recovery method of SIM card operation function as claimed in claim 1, wherein in step (f), also comprise the following steps: (f1) read a phase basic file in the SIM card; and (f2) Judging whether the phase level of the SIM card is phase2+, if so, executing the feature downloading program. 6. the recovery method of SIM card operating function as claimed in claim 5, wherein, in step (f1), if read a phase base file failure in this SIM card, then get back to this step (a); If If the step (f1) fails after a certain number of times, it is determined that the SIM card has been removed or damaged. 7. the recovery method of SIM card operation function as claimed in claim 1, wherein after step (g), also comprise the following steps before step (h): (g1) read a phase base file of the SIM card; and (g2) Determine whether the phase level in the SIM card is phase2+, if so, execute the feature download program. 8. the recovery method of SIM card operating function as claimed in claim 7, wherein, in step (g1), if read a phase basic file failure in this SIM card, then get back to this step (a); If If the step (g1) fails after a certain number of times, it is determined that the SIM card has been removed or damaged. 9. The recovery method of SIM card operation function as claimed in claim 1, wherein, in step (c), when the verification status of the code is no need for verification, it is determined that the SIM card has been removed or damaged. 10. The recovery method of SIM card operation function as claimed in claim 1, wherein, in step (d), if this read personal identification code/unlock code is not identical with this original personal identification code/unlock code, then judge The SIM card has been removed or damaged. 11. The recovery method of SIM card operation function as claimed in claim 1, wherein, in step (e), when the code verification status is that verification is required, it is determined that the SIM card has been removed or damaged. 12. The recovery method of SIM card operation function as claimed in claim 1, wherein, in step (f), if re-reading this reading IMSI value of this SIM card fails, then get back to this step (a); If the step (f) fails after a certain number of times, it is determined that the SIM card has been removed or damaged. 13. The recovery method of SIM card operation function as claimed in claim 1, wherein, in step (g), if the read IMSI value is different from the original IMSI value, it is determined that the SIM card has been removed or damaged. 14. the recovery method of SIM card operation function as claimed in claim 1, wherein, also comprise before this step (a): (i) Insert the SIM card into the mobile phone body: (j) activate the mobile phone body; (k) Read the SIM card, if the SIM card needs to verify the personal identification code/unlock code, re-record the verification status of the code as verification is required and record the original personal identification code/unlock code on the mobile phone body, if the SIM The card does not need to verify the personal identification code/unlock code, and re-record the verification status of the code as no verification required.

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