umeshdeepu
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hello friends,
I'm using sim900a module and worked for 4-5 weeks correctly after that module shows sim not inserted and simvdd will be 0v. i have designed 5 modules 4 modules are working but 1 module has this problem. plz any one help me...
my design is as per the datasheet.
regards
umesh
I'm using sim900a module and worked for 4-5 weeks correctly after that module shows sim not inserted and simvdd will be 0v. i have designed 5 modules 4 modules are working but 1 module has this problem. plz any one help me...
my design is as per the datasheet.
regards
umesh
