Fairphone 2: Crazy touch inputs (touchscreen issue) - workaround (for some): increase touch & hold delay

Yesterday evening I ran into the same issue again, so the switching of buttons didn’t help in the end in this case.
My impression is, that the problem lies at the on/off button itself, not at the switch at the slim case. This as well does explain, why this issue happened half a year after assembling the new slim case. I raised a request, wrote that and asked for repair. My FP2 has been delivered at the 20. Jan. 2015, 23 month ago. Probably a lot of phones has been delivered at that time, so I have to be very patient to get this issue solved.

If you take the cover and rim off, does the power button on the phone seem stuck?
Why would you think it’s the button at all if it happened half a year after you got the slim case?
Have you looked at other possible reasons (#rebootsguide) like a misfitting battery (solved with a little paper strip to press the battery against the contacts).

Yes, I did. The difference is, that I don’t have reboots, I have this flickering of the screen with changing picture sizes and starting lots of apps, which makes it impossible to put in a PIN code i. e., also without case around the phone.

Does this happen while the phone is charging?

@urs_lesse: Doesn’t matter, whether it is charging or not, no difference.

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Oops, I totally missed that. I moved this whole conversation accordingly.
Please check out the tips in the first post.

PS: I just updated the first post with additional info from the official troubleshooting tool.

Hi,
I work with the latest version of FairphoneOpen (thanks God, the version of April 1st become a new one), but a few hours age, when I activated the scrren the phone hat automatic input, very fast and did not stop.
So I shut it down and restarted it. When activating the SIM card there came automatic input, too and just in time I stoppen the Phone by removing the battery so that I could avoid the third false input.
In this state I cannot operate the phone.
Does anyone knows a reason on, more important, whot to do to come to a working phone?

I moved your post here, please have a look at the first post for a start.

The screen test worked fine.
at the moment I cant even save data, because the phone works from itself with no input by me, it goes into the flight modus automatically.
Saving data is not possible, because I cannot chose MTP in the USB-mode.
I fooled around pressing some buttons and tapping the screen, just now the screen showed
"System UI" was closed
I hope, you will find a solution for this problem, I saw none so far

Did you follow the second post? This one is the first …

Thank you for the hints, I am going to work with it.

I did all the hints from above, testing the screen and making the battery empty.
At the moment it seems that I have found a solution:
in my desperation I twisted the phone in the axle from top to bottom and from this moment on I got no more mystery input.
As for me, there must have been a weak contact within the phone. I dont know where, but there must be something with the display. Perhaps a hint for specialists.
Ok, it works , sun shines again and apocalypse is delayed.

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