krishnakumar.r93
Member level 2
Hi all,
I'm using sim900a module and it worked perfectly for more than 2 weeks without any problem. But, now when i insert any simcard, it doesnt catchup to the network. When i looked at the serial log of the sim900a, i get CPIN:NOT INSERTED all the time. The voltage on the simm-vdd is 0v. Tried resoldering the pins on the sim socket and the module as well. The VBAT of sim900 is 4v. The AT commands work fine.
How do i solve this problem?
I'm using sim900a module and it worked perfectly for more than 2 weeks without any problem. But, now when i insert any simcard, it doesnt catchup to the network. When i looked at the serial log of the sim900a, i get CPIN:NOT INSERTED all the time. The voltage on the simm-vdd is 0v. Tried resoldering the pins on the sim socket and the module as well. The VBAT of sim900 is 4v. The AT commands work fine.
How do i solve this problem?