Phone works, battery in, assembled again, started maemo, plugged in USB, pressed mass storage from memories, aaand it works
But nothing on the screen.

You forgot that I COMPLETELY disassembled the phone and exactly the back of the LCD is hot. NOT the CPU.

I know how the tracker works and I hate it as much as I can. It's not the first time I hit the phone because of it. But this time it just fell maximum 10 cm to the desk, nothing special. Imgainge throwing it from your elbow resting hand to the desk.
This phone survived many, many accidents.