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SIM900 Garbage Problem

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nicklat

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Hi, the last days I noticed that sometimes SIM900 after a successful connection to my server returned garbage instead of the server's normal response. For example I was sending:
AT+CIPSEND=1\r
"Message"
0x1A
(until now everything is fine).

At this point the server returns a response which most of the time is garbage. You can check the attached image.

PS1. The power supply I provide is large enough.
PS2. I tried a lot of different baud rates.

Any help is appreciated.
 

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