My unit 4G/Wifi option with reverse cam before stuck on black screen of death on boot was in the past:
QCM6125 12 S10A_123 eng.hct.20230406.105233 EAU
MCU: HCTGQ_HCT_V4.03_1
Apr 4 2023 13:34:20
I managed to enter to recovery mode and becouse lack of original software backup I put there:
gmcu.img V4.12 first and update zst27_sc138_12_(20240513).zip ( I wiped flash of course).
MCU: HCTGQ_HCT_V4.12_1
Mar 13 2024 09:44:14
QCM6125 12 S10A_123 eng.hct3.20240513.152630W
The unit revived but now I don't have WiFi - the option is available in menu, but after I put it to on app suspends a little and nothing happens. Tried also gmcu.img V4.13 and gmcu.img V4.54
The second observation - no other update than zst27_sc138_12_(20240513).zip boots correctly. Other G12's updates stop on the launcher's start and reset the unit. I always have to return to zst27_sc138_12_(20240513).zip to boot radio to normal operation, but there is no possible to execute command WiFi to on.(GUI can do it but hardware is not).
The BT chip is FSC-BT825B V1.1 and in the factory settings works under FSC_BW124 setting option. Tries other BT options, but it didn't help for WiFi.
IF I understand well the Wifi is in Fibocom unit becouse there is only antenna output. How to revive the wifi to have internet connectivity? Which firmware or MCU should be updated?