Hi, > Hi , > got new information. I start gdb and backtrace and i found where is the > seg fault. The function "decode_at_error" doesn't check if *error or > *final are NULL... and in my case they are. > if I put a check in the function it remains stuck waiting AT cmd reply.... > The wakeup logic should only be used with the Freerunner. Please disable it unless you know what you're doing. Something else is wrong. Regards, -Denis