Leopard77
Newbie level 4
Hello, I've got the following trouble.
I've got a SIM900 on a board. Everything works great till I receive an SMS.
Everytime the SIM900 receives a SMS, the SMS is stored on the SIM card (I can read it on a normal phone) but the SIM900 module then turns off without any warning message sent...
I think that the network does not receive an answer from the SIM900. When I read the SIM on a normal phone the message appears as many times as I have performed a SIM900 power up...
When the SIM has been inserted in a normal phone, I can put it back in the SIM900 and everything works great till next attempt to receive a SMS.
Anybody has an idea of what is wrong ?
Thanks.
I've got a SIM900 on a board. Everything works great till I receive an SMS.
Everytime the SIM900 receives a SMS, the SMS is stored on the SIM card (I can read it on a normal phone) but the SIM900 module then turns off without any warning message sent...
I think that the network does not receive an answer from the SIM900. When I read the SIM on a normal phone the message appears as many times as I have performed a SIM900 power up...
When the SIM has been inserted in a normal phone, I can put it back in the SIM900 and everything works great till next attempt to receive a SMS.
Anybody has an idea of what is wrong ?
Thanks.