Без тестпоинта spd diag появляется на 3 секунды и отвал
Лог InfinityBox SP3 Service Tool v2.42
Start Connect Samsung X205 Boot [FF] FireFly v2.42
Power device Off and connect cable now
Remember Volume Up/Down or Test-Point
Waiting for device...
Device found; PTFN: SPRD U2S Diag (COM6) 1782:4D00...