Oh dear! I have dreaded this day. I saw others report this type of problem and I hoped it would never happen to mine.
Anyway, let's deal with the matter. After midi'ing up my DX7 > Octatrack > Roland A880 > Oplab > Op-1 I began to encounter problems. My Op-1 would restart itself randomly and sometimes the screen would feeeze. I was left with a message on the screen (see photo). I got in touch with Teenage Engineering and they asked me to show a video of it and to post on here. After that, it seemed to be ok so I refrained. Then a few days ago it just refused to turn on.
I am super upset and dissapointed. It's one of the few holidays we have in Japan - I have a whole 9 days off - and my Op-1 is an integral part of my setup.
Emotions aside I really don't know what to do. That's why I'm here.
What is your advice my good friends?
Edit: I am trying to upload a photo but it isn't working from either my phone or my laptop. When I switched on my Op-1 the logo and R. 00218 tappeared and this code on the left hand side
(Please note these / lines are pointing the opposite way)