SIM800L does not start. How to fix?

I

IliaBrz2018-03-23 21:01:20

Arduino

IliaBrz, 2018-03-23 21:01:20

I purchased the GSM module SIM800L on Aliexpress, but it does not start. Doesn't respond to commands. A message is displayed:

F1: 5004 0000
00: 102C 0001
01: 1005 0000
U0: 0000 0001 [0000]
T0: 0000 00A3
Boot failed, reset ...

I saw this problem here - arduino.ru/forum/obshchii/sim800l-mini?page=7#comm... , but it remained unresolved.
Information from the label:

FCC ID UDV-2013072402
S2-1065J-Z1435

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2 answer(s)

C

Cyril, 2018-03-23
@argz

Broken firmware, apparently :(
Write to the seller

V

vanyamba-electronics, 2018-03-24
@vanyamba-electronics

Most likely, the SIM card cannot be initialized.