I bought used OPLab from *insert curses here* dishonest person (cause he claimed it was 100% working unit & he won't refund/take it back) cause... it's bricked (due to unknown damage and cannot be repaired - at least that's what TE support team says).
So I decided to share "how to spot bricked OPLab" video (a.k.a. things I wished I knew before buying used one ;)).
USB LEDs (mini USB and HOST B) are lit up, 4 LEDs that show current mode are off/doesn't respond to program change; program change switch does nothing. Obviously no midi data is transferred in & out.
It shows up as "CommunicationsDevice" when connected to MAC via USB ("A+B" Firmware Update mode doesn't work).
That's all folks!
Stay classy & curious :)