So.
I opened that thing and bahhhh. Filthty... No idea how to clean all that old smoke and tar off the board under the air vents.
Ok, managed to get some contact spray into some switches and it works ok for me now. I was surprised that this model is MUCH different than the one Dave had (the $19 one). Did not expect such differences (205-3 mine is 205-2).
And guess what, Storage mode is not working. I removed it (much harder to access than on 205-3) and removed all chips, cleanded the sockets and reseated the chips. No change.
It looks to me that Hold I is not working at all, Hold II is working somewhat, I see a curve but it looks as not triggered and when holding it it is not the right horizontal scale. Single Shot is also not triggered. I made two videos in case someone has an idea at which placed I can look for the error. Don't expect Dave grade fun videos
Cheers,
Carsten