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This is good idea.
In internet you can find version: 1137B08SIM900M64_ST (B08) and the problems disappear.
Of course if your module is witout any defects. Modules of SimCom have bad the quality control in the factory, this is the reason why is a lot of problems with use of them.
for example...
Hii ALL,
I have problem, I downloaded your fimware: 1137B08SIM900M64_ST without any problems (like in instruction) to my SIM900 but now I can not power on this module. Whats hapend??? Please help!!! :x:x
I changed firmware becouse I had older firmwares version: 1137B07SIM900M64_ST and there...
Hii,
I have the question, I used SIM300 without connection RTS and CTS signal.
Few days ago I bought the SIM900 (without D, the smallest package 24x24mm) and I have had problems because: “ Factory settings is auto-bauding enabled.”(now at first I must synchronize baud rate in connection)...
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