Completely erratic behaviour

Good evening,
My FP1 has been completely useless since last night for no apparent reason (it didn’t fall, nor get wet). The screen seems to have a life of its own, as if someone was touching it, especially the bottom part of it. I can’t do anything anymore with the phone…

I changed the screen a few months ago, it all went well and the phone has been working perfectly well since then, except for today…

I tried to perform a touchscreen test, unfortunatelly, I couldn’t do it because the phone navigates on its own from top to bottom and I can’t select anything…

Has anyone ever had this problem? How did you solve it?

Thank you very much for you help

I forgot to mention that the phone seems to be getting hot in the upper part of the phone, around the SIM card area

I have finally managed to perform a touchscreen test, and here is the result : no matter what part of the screen I touch, a line immediatly appears and goes down to the bottom right corner of the screen.

I don’t know what this means, as this is the 1st time I perform this test…

It means that the display has a hardware malfunction and needs to be replaced. Contact support and attach the picture above.
Displays are currently not in stock, but maybe there are some left for warranty cases?

Thank you for your help, I will contact support.

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