Does anyone know an AT command that will allow me to query how many retries of entering PIN on a SIM card before it locks me out?
I've tried AT+CPIN? but that does not give me how many times I can enter the PIN before I need a PUK. How do normal phones do it?
Thanks in advance.
最新的 3GPP 规范将您想要的命令列为+CPINR
It's not part of the ETSI spec so it depends on the equipment your using.
It's most often called the "Pin Counter" and can be read via AT^SPIC
however your best bet is looking for "Pin Counter" in the devices AT command documentation.
You could use a generic approach for >=3G, this should work independent of the modem manufacturer, as it directly communicates with the sim card (UICC).
It reads the PIN retry counter from the UICC
AT+CSIM=10,"0020000100"
The AT+CSIM
command sends a (raw) command to the sim card.
The sim card responds a bit cryptic with one of:
+CSIM: 4,"63CX"
X is the hex-value of the remaining retries for pin1 (range 0-A=0-10 retries remaining) +CSIM: 4,"6A88"
pin1 is not initialized/available +CSIM: 4,"6983"
pin1 is blocked.
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