| Error | Solution | |-------|----------| | BROM ERROR: S_FT_ENABLE_DRAM_FAIL | Bad preloader → flash using test points or force BROM mode (short CLK/GND) | | STATUS_EXT_RAM_EXCEPTION | Wrong repack → use LUA-L02 specific custom_emmc.txt | | Hang at logo after flash | Flash userdata + cache from repack; or replace logo.bin | | Device not detected | Install MT65xx Preloader VCOM drivers (disable driver signature on Win10) |