Just built my A06 DevTerm. Everything went fine. Cabling seems fine.
Booted it up with the included SD Card and sadly the screen is just displaying nonsense.
Some things I have tried:
- Re-seating both sides of the display cable
- Booting with the case open and jiggling the cable
- Running on battery, battery + charger, charger only, multiple chargers
- Flashing a fresh disk image onto the SD card