I think so, too. Before 1.3.6 I had this issue just while loading the phone, and shortly after the patch my phone went crazy…
Our webshop, support system (Zendesk) and return portal are three different systems and therefore three different accounts are needed. We realise this is highly annoying and are working on improvements for the future!
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Hey, I’m sorry to hear your phone is behaving like this. Give us a call at +31(0)20 - 788 400 to make sure we can fix this as soon as possible!
Thank you very much, I did so and need to return my Phone for repair. 
Btw: there was a little typo, it is +31(0)20 - 788 4400 (for future people who want to call.)
OMG this is just the most crazy and annoying bug I ever had with a smartphone!
It used to happen just from time to time, now it’s just impossible to use the phone at all, I can barely unlock the sim (pincode).
Another aspect of the bug that i thin wasn’t mentioned before. The letter E and D are almost impossible to type (even when the bug doesn’t happen). Whe I try to type E, both Z and R letters are typed in instead (im on a french azerty keyboard).
The workaround did not help much.
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Sounds like a problem with the screen or the connection between the screen and the rest of the phone. Reassembling helps in case of the latter. See also this topic:
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Having this issue, seems to happen whilst plugged in on charger more often than not but not always. Will try the workaround to see if it helps. It seems to fix itself as well, it’ll do it later on in the day and ill just leave it and the next day it’s fine 
Same here too. 
I am very disappointed by the FP2. Got 1.5.1 and these displayissues are still there. After some time of general using I have do lock/unlock the phone because the display goes crazy. I also cant use my phone while pluged in two of my chargers (both original Samsung 1A). It has no problem with a cheap noname product with 0.5A.
I know you dont have as much manpower as Apple or Samsung to work on a fix. On the one hand I support your idea for a repairable/longer usable smartphone and fair paid workers in the whole process. But on the other hand I dont want to use my FP2 anymore because this issue is soooooo annoying and makes me crazy.
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Has anyone tried using a ferrite-bead on the USB-cable for charging and see if the touch input gets better with it (if not: try a second winding; or 2 beads, one on the chargers end - one on the micro-USBs end of the line)? To me it sounds like an EMC-related problem.
I don’t have the problem with my chargers but occasionally touch input does crazy things and it seems it’s related to the humidity of my input-finger. But that’s a different issue, I guess.
Hello I had the same problems. They have send me a new display and now
everything works fine again. You have to call them
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Can you give me the number?
At the time of writing, it’s:
Mon & Tues 10:30 - 18:30 and Wed-Fri 9:30 - 17:30 at +31 (0)20-788 4400.
(It’s at the very bottom of each support page, including the support request form)
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my screen scrolls up and down - mostly up - arbitrarily. changing the access to medium instead of short didn´t change anything. I changed the contrast (Helligkeit), but that didm´t change anything. I switched it out and back on several times. No changes. Even when I switch the fairphone on it starts flickering/scrolling. Do you know if this is (still) considered as a bug that will be solved in an update? Or have you any other idea what to do? It is hart to use messaging at all at the moment, for example. by the way - are you german? then an answer in german would be appreciated by me. thank you for your help.
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I agree wholeheartedly! Fairphone is a great idea but sadly the phone has too many problems to be usable. Going back to my old iPhone 5 I’m afraid. Big waste of money too.
If your device doesn’t work, return it. You have warranty!
The phone as it is designed works perfectly fine, but any electronic product may have a couple of faulty devices among them. Just get it fixed.
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So this exact bug has happened to me, it started a few weeks ago with one band on the screen not working, but now it’s two bands and what was a minor annoyance has become totally unusable… I have tried all the fixes on the forum
I have sent a message into the helpdesk, but I’m just wondering what people’s experience of the turnaround time has been? (I’m going travelling soon, so can’t really afford to get drawn into a prolonged saga in getting it fixed)
So finally this bug also got me. I already had some problems with the screen (Bright spots on the display and Parts of the touch screen dont work). I got my brand new third display and it was going crazy from the first moment.
Touch and hold delay improved it slightly.
After cleaning the contacts to the screen it works like a charm for one evening. The next morning, it was jumping again.
Switching on the pointer position in the developer options (translated from german. No idea, what it is called exactly in english) as suggested from @rynn seems to work for me. No jumps this whole day.
So I am not sure, wheather its a hardware problem, or a software problem. Maybe a mixture of both.
When the pointer position will work for more than one day, I am more or less happy with it. Its ugly, but I hope one time an update will be able to solve the problem, because it seems to be possible to solve it on the software side.
Apart from this it makes no sense for me. As far a I understand this option just shows position and some data like speed and position in the top of the sceen. No idea, what does it change.
While I am writing, I had the first jump with this option on…