To repair the FP2 (core module)

[Volker]

Some more details about the symptoms you face would be helpful.
Regarding

@enricosecondo

a mechanical problem between screen and core module.

I can recommend this post:

Noisy coloured pixels on my Fairphone 2

Disclaimer added by moderator: This post contains instructions that will void your warranty and might be futile as the same issue can have it’s cause in a defective screen instead of the core module. edit: so just after a couple of weeks it began again with the coloured pixels all over the screen, so the paper-trick is just to retards the problem… until now i have no idea. I’ll maybe check the oven, like ElKrasso proposed. Hey guys! I hope I found a solution for this prob…