Is it possible to read PIN number from SIM card in module or my next question is if it is possible to change the PIN number with module?
tnx
It doesn’t seem to be mentioned in the Software User Guide. It’s probably a good security feature that it can’t be read/changed, in a lot of applications.
Leon
I found the command AT+CPWD for chanching password but it doesn’t seem to work.
I’m asking because i would like to implement some kind security because in our project you can set up the module from SMS, but i would like to set up this that only user wich knows PIN number of the SIM can change the settings.
Any ideas?
You can ask the user for a PIN and check it. Details are in the Guide.
Leon
I have this to obtain PIN but how to check that the PIN is from the SIM card? Because you can’t read what is the PIN of the SIM card.
You get the user to input the PIN, and check it with the appropriate AT command, as I said before.
Leon