Ghost inputs on FP4

@Martin_1964 , a single layer of tape usually isnt thick enough. I added 4 layers of a 0,15 mm tape =0,6 mm in addition to the original foam pad. works for a week now.


I can confirm I had the ghost touch issues on lockscreen too, so when I swiped up, a ghost input came along and swiped the pin screen back down. Either that or a random pin / pattern was registered making it impossible to log in.

Could you see the ghost input that pulls down the pin entry with show taps turned on? I am not seeing anything other than my swipe tap though it just snaps back down afterwards.

I added 2 layers of 0.177mm tape so far. Did you have the same issue with lock screen swiping up?


I expressed myself incompletely. I also have 4 layers, but it doesn’t help.

That is indeed interesting. No actually I cannot confirm that. I hadn’t “show taps” turned on.

i had ‘show taps’ active since the problem first occured on my display (and still recommend it, if anyone wants to contact support) but haven’t tested it with insulating tape by now. do i have to place it between display and connector cable or you do you all have placed it before?

about the “lock screen backsnapping” issue: Do you have that exclusively when holding the phone in one hand and using the thumb to wipe the lockscreen? or also when you use two hands and therefore one finger to apply a (much longer) vertical wipe? last year I had the first mentioned issue but not connected to ghost touches. its gone now however I dont know whether I adapted my thumb-wiping method or whether the Software accepts shorter wipes now.

You place the tape onto the connector plug. On display side there is a piece of foam which is giving pressure on the plug, so basically you add pressure.

Do you have a picture of this?

Nah, sorry. But it is really self explaining when you see it. Here’s a picture from ifixit: Fairphone 4 Display tauschen - iFixit Reparaturanleitung


thank you. i’ll try it and will tell if it worked for me or not


Thanks everyone for the lively discussion, and in particular thanks @Hans_de_Vries for replying to my earlier request. Today I simply inserted a piece of cardboard (didn’t even bother to glue it somehow; hoping the pressure will keep it in place) between the connector and the foam pad. It is maybe 0.3 mm thick, but I find it hard to tell the precise thickness. I’ll keep you updated how sustainable this quick fix is. If it’s not, I’ll try a double layer of this cardboard, an additional foam sticker, or tape.


This is happening to me so frecuently that is gettin’ ridiculous, Will try this fix when I have some time.

1 Like

It happens off and on with two hands or one hand. It’s really annoying and it doesn’t occur on any of the other android phones I’ve used such as the Pixel 6a and LG G8X.

Seems that this is becoming more common lately, but sometimes the screen will start jumping all over the place with what seems like ghost inputs, going as far as opening apps etc.

The heck is that all about?

Turn on show taps in developer options and you’ll probably see taps in a vertical line down the center of the screen repeatedly. You can see it in the screenshots way up in the thread.

1 Like

Yea, I guess my thread was merged with this one.

What’s the solution? What’s FF saying about this?

@ecip :
Did you follow @phair 's advice? did you read this thread? it contains all you want to know. you dont need somebody to support you with that I guess?

My replacement phone also was giving ghost touches within 2 weeks, I contacted support again to make them aware but opted for the fix in this thread and added 5 layers of electrical tape. It’s been stable so far for a week, will keep an eye on it.

With regard to Fairphone support not acknowledging this, I got the reassurance that they are fully aware of this problem and they are investigating for a fix. They offered to keep me appraised when such a fix would be known.

But yeah, I agree that a simple post by a community manager on this would be better.


They are assuring this since several months now.
I sent them a message today asking critical questions about this issue (“is this hardware issue a neckbreaker for Fairphone”? etc.) and urged them to show us this is not the case. Dont know what they will return.