Thank you for your suggestions.
I have restored the initial radio configuration in ttgov21.h
#define CFG_sx1276_radio 1 // HPD13A LoRa SoC
commented the whole block in radio.c
ASSERT(v == 0x12 );
ASSERT(v == 0x22);
#error Missing CFG_sx1272_radio/CFG_sx1276_radio
Still not working, now fails in:
ASSERT((readReg(RegOpMode) & OPMODE_LORA) != 0);
As for the boards picture, here it is:
If needed I’ll make new pictures with better lighting and focusing on specific PCB areas.
I’ve tested my 4th and last board, same issue as the 3 others ones.