Question Touch screen issue: scrolling happens when I release my finger from the screen?

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funkyverb

Member
Mar 8, 2019
6
0
Could you guys please test something out for me on your S21 FE phones? In Chrome (or any web browser) try scrolling up or down slowly, then hold your finger still and release it from the screen. Your goal is to avoid scrolling the page at all when you release your finger.

For me, the screen often scrolls when I release my finger. My phone seems to be detecting subtle movements in my finger as I release it from the screen, and incorrectly interpreting that as a scroll action. I'm starting to worry that this is a software bug. Is anyone else experiencing this?
 

Randi03

Senior Member
Oct 30, 2021
97
48
You are right. The same thing happens to mine, when I lift the finger slowly, the phone scrolls erratically. I said it before in another post but I absolutely know that thie S21 FE does not have the same snappy, scrolling speed that I had on my S21 Ultra. It is a 120hz display, no doubt about it, but something is making it seem laggy or erratic sometimes.
 

Randi03

Senior Member
Oct 30, 2021
97
48
None. I'm guessing Samsung might of used the same manufacturing process as on the S20 FE (which had the ghost touch issues) and in order to fix it they made some software modifications to the screen sensitivity. So it might be the panel is flawed or purposefully made to feel less flaghsip to make us buy the ultra :)) I'm rambling I know, but in this day and age, I think these companies can do such things. I vividly remember not having any display issues on the S21 Ultra and I remember holding both the S21 Ultra and the S21 FE and scrolling up and down. OneUi felt so right and fluent on the Ultra, I have no idea why. On the FE, even when I am typing words I often have spelling errors and typing feels very uncertain and laggy.
 

punio4

Senior Member
Nov 13, 2016
97
44
I've made a screen recording in 60 fps using scrcpy and the touch debugging enabled while viewing a grid paper PDF.

You can clearly see on many swipes where there is a random 1 or 2 sample points extra when the finger lifts off. It seems to be mostly triggered when trying to do precise movements, like trying to align the grid to the edge.


 
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Randi03

Senior Member
Oct 30, 2021
97
48
It's great that we have proof regarding the touchscreen, however I am not sure what we can do to solve it. You could show it to samsung support but I doubt they will recall every single unit and fix it if it's a hardware issue.
 

BOOS1A

New member
May 5, 2022
3
1
I wrote to Samsung support, but they didn’t give me a clear answer, they said that this is a feature of the phone. I think you need to write a lot to Samsung support so that they fix it with an update
 

xl_bobby

Member
Feb 6, 2018
18
7
I wrote to Samsung support, but they didn’t give me a clear answer, they said that this is a feature of the phone. I think you need to write a lot to Samsung support so that they fix it with an update
Can you screenshot or copy the reply? I got a generic "we will forward this to engineers" reply
 

BOOS1A

New member
May 5, 2022
3
1

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Randi03

Senior Member
Oct 30, 2021
97
48
That's exactly what they do all over the world. I think they know very well what they are doing. Why bother with defects that only a small percent of people actually perceive. I find this to be really annoying and frustrating. I have no idea what to do to get through them. They do the same thing with the HDR function too. It's always on, you can clearly see it in action after every photo but they'd rather send you to the service center than admitting they know about it and that it is something they did on purpose. Most probably they are going to brush it off and hope people forget about it while new phones will take over the attention of the customers.
 

TheNexian

Member
Dec 9, 2011
8
3
I just got my s21 FE and I'm having this issue. It's annoying. As a scroll webpages, the page hops up after I lift my finger. It's been happening all day. I really hope attention could be brought to this and that it's fixed in an update.
 
I just got my s21 FE and I'm having this issue. It's annoying. As a scroll webpages, the page hops up after I lift my finger. It's been happening all day. I really hope attention could be brought to this and that it's fixed in an update.
Are you on June update? I'm trying to reproduce it on June update but I can't, it seems to be fixed.
 

Randi03

Senior Member
Oct 30, 2021
97
48
I just got the June update a few minutes ago. In these few minutes of use, I *seem* not to be having the touchscreen issues anymore. But I'll update if that changes. Thanks.
Can anyone else confirm? I am trying very hard not to update the S21 FE from the stock ROM unless it's actually worth it :))
 

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