Freeze after touching around spacebar
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The laptop did not boot (black screen, green LED near the CPU);
Found that it boots while holding it with one hand by corner. Thought that it is because the upper case metal plate might have been touching electronic components; disassembled, cut screen protector film into some electric shielding and put it under the main board and between the compute module and the motherboard; cleaned contacts with alcohol, put and screwed everything back.
Now it booted but froze on the login screen immediately after I pressed spacebar. After freezing, applying and releasing pressure removes or puts the graphics artifacts back on screen, the laptop does not unfreeze until reboot.
Rebooted fine, can actually log in, but the laptop freezes every time there is a slight pressure around the spacebar area.
What might my problem be, and what should Ilook at further to diagnose and maybe fix it?
Update: after careful examination I found a stain of lead colored grease on the baseboard below compute module.
After wiping it out I saw that the board underneath has a slightly brighter shade of green. Not sure if that's the mask reacted with that grease and lost its color or it's I accidentally damaged the board during transportation.
Now it boots (blue LED, coolpi logo, Ubuntu boots) only when holding down Loader key, green LED lights constantly and blank screen otherwise. Still looks like either a crack in the board or contacts misaligned/poor contact since mechanical pressure makes it boot.
Do you provide some kind of baseboard PCB layout or service manual, and do you sell baseboards separately? I will try to take laptop to local repair shop for diagnosis and update with the results.