Never had this before, though I've seen the symptom posted a couple times.
Now I have two MS replacement consoles here that arrived yesterday... both TS943's. One is an ms25, the other an ms28.
In both cases, the consoles worked when dropped off. Now, after flashing (both with Ix 1.2), the trays will not stay shut. Oh, they close, for about 3 seconds... then the 'Game' tab on the dashboard changes to "Opening", and out she comes.
Of note... if I power down the consoles, the tray will close, and then open again before the fan finally shuts off. Bugger me! I end up powering off, and then as soon as the tray closes, yank out the power cord.
I've returned both back to their orig.bin's, but no such luck... they still eject constantly. And since the trays won't stay shut, I cannot confirm whether originals or copies work.
Anyone experienced something like that? I'd appreciate any thoughts.