Sliding two fingers on the screen causes jitter.

Rooted: No
APP Name: All applications that require two simultaneous touches to control.
Model: ZE620KL
RAM: 4G
Firmware/APP Version: Tested on several.
Frequency of Occurrence: Every time the user uses two fingers on the screen.

Hello, folks.

I bought my Zenfone 5Z (4GB/64GB) recently, specifically to play some games that other devices that were within my budget wouldn't be able to handle. But I'm disappointed with a detail that, although it looks small, makes a huge difference to the gaming experience.

Every time a game requires two fingers to control (usually first-person and third-person shooting games), the touch sensitivity doesn't allow me the precision I need for such games.

I slide my left thumb on the left side of the screen to control the movement and my right thumb on the right side of the screen to control the aim, as the game requires.

The problem appears when I try to aim while running. What you don't notice when you slide your fingers quickly, when I slide slowly (for greater accuracy) the screen doesn't respond as it should, generating a jittery stutter.

To test more thoroughly, I downloaded the MultiTouch Tester app from Google Play.

During the tests I was able to see that the problem happens when - specifically - two fingers are used. Not with one, not with three or more.

I'm in the stable version of Android 10 that I downloaded from the official Asus website in my country. I was only able to update my device this way, since when it arrived (with Android 8) I couldn't find firmware updates available.

Anyway, I found this problem even when I was using the Android version that came from the factory on the device.

Thanks in advance!
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Comments

  • Hi Bruno~xD,

    Could you tell us the app name and version that have this problem?
    Could you show us a short video of the problem? This could help us look into the problem greatly.
    To share videos, please upload it to ASUS WebStorage (https://www.asuswebstorage.com/navigate/) and share the link with us.

    Thanks for your help :)
  • Last edited by Bruno~xD on 2019/12/13 15:35
    Jei_ASUS posted on 2019/12/13 04:14
    Hi Bruno~xD,

    Could you tell us the app name and version that have this problem?
    There are some videos of other users that present the same problem, as is the case of NoOne, which shows in the following video the problem of aiming on PUBG MOBILE shaking when you slide two fingers on the screen slowly:



    In the next one he shows it in the test application, how the swiping of one finger flows better than with two:



    He gives other examples on his channel:

    https://www.youtube.com/channel/UCNBLUwCXWDjmh4wMft3srrA/featured

    There is no specific version of the system or applications, it always happens, everywhere.
  • Jei_ASUS posted on 2019/12/13 04:14
    Hi Bruno~xD,

    Could you tell us the app name and version that have this problem?

    I can't make a video myself now because I'm at the hospital for some days and the device is at home.

    Those videos I got on YouTube shows exactly what my device is doing, so please, tell me it's not a HW issue.
  • Jei_ASUS posted on 2019/12/13 04:14
    Hi Bruno~xD,

    Could you tell us the app name and version that have this problem?

    Don't leave me here, please!

    Ne me quitte pas. (8)
  • Bruno~xD posted on 2019/12/15 05:59
    Don't leave me here, please!

    Ne me quitte pas. (8)

    Hi Bruno~xD,

    Could you tell us the apps this usually happens in?
    Thank you :)
  • Last edited by Bruno~xD on 2019/12/25 09:41

    Identity V shows it better, but happens too on PUBG, Call of Duty...

    Every time a game requires two fingers to control (usually first-person and third-person shooting games), the touch sensitivity doesn't allow me the precision I need for such games.

    I slide my left thumb on the left side of the screen to control the movement and my right thumb on the right side of the screen to control the aim, as the game requires.

    The problem appears when I try to aim while running. What you don't notice when you slide your fingers quickly, when I slide slowly (for greater accuracy) the screen doesn't respond as it should, generating a jittery stutter. Not smooth at all.

    Touch needs calibration.

    Thank you for not leaving me alone! You're great, Jei!

    Don't know if you're on it, but Merry Xmas...or have a nice day anyway! xD
  • Bruno~xD posted on 2019/12/25 20:38
    Identity V shows it better, but happens too on PUBG, Call of Duty...

    Every time a game requires two ...

    Hi Bruno~xD,

    For PUBG, our relevant team has confirmed that this would be an app issue and could be found on other phones as well. We would suggest that you report the problem to the app developer.

    For Identity V and Call of duty, please tell us the app versions.
    If possible, we would need a short video showing the problem.

    Thanks for your help.
    Merry Christmas to you too! :)
  • Jei_ASUS posted on 2019/12/26 06:27
    Hi Bruno~xD,

    For PUBG, our relevant team has confirmed that this would be an app issue and could ...

    It's not, Galaxy S7 and S9+, LG G7 here at home don't feel the same when sniping in PUBG.

    All games are in the latest version and it feels like that since the first time I played. Also, we have the MultiTouch Tester app showing the issue on the videos on my reply above: 2 fingers slinding slowly on screen causes the flickening.
  • Bruno~xD posted on 2019/12/26 10:33
    It's not, Galaxy S7 and S9+, LG G7 here at home don't feel the same when sniping in PUBG.

    All gam ...

    Please, just ask team to fine tune touch firmware calibration, 2 simultaneos touch flickening is ruining game experience.
  • Emilee_ASUS replied a post about this issue in April: https://www.asus.com/zentalk/ww/forum.php?mod=viewthread&tid=268115&extra=page=1&filter=&sid=1|8

    'til now it's not solved. :(
  • JonathanSR posted on 2020/1/4 09:39
    same problem 🤣

    https://www.asuswebstorage.com/navigate/s/163CB1AD855942A5BA527606CF450B09Y ...

    And it's not Google's issue. Galaxy S7 and S9+, LG G7 here at home don't feel the same when sniping in PUBG, nor even the PUBG as it happens playng any "twin stick control" game (Identity V, Call of Duty...)

    All games are in the latest version and it ever felt like that since I played on the versions before. Also, we have the MultiTouch Tester app showing the issue on the videos on one of my replies on this post. Happens too on Oreo, Pie and still in Q.
  • Jei_ASUS posted on 2019/12/26 06:27
    Hi Bruno~xD,

    For PUBG, our relevant team has confirmed that this would be an app issue and could ...

    You saw JonathanSR's video above, Jei?

    It's the effect I described, happening too on Identity V, Call of Duty and any other "Twin Stick" game, Multitouch Tester app shows it's the touch, not a graphical issue.

    One finger or three will not show, so it's a matter of calibrating the act of slightly slide two fingers on the screen to not cause this (jitter,stutter,flick,delay,lag,idk) effect shown on video.
  • Last edited by ValeeraSanguinar on 2020/1/10 08:33
    Jei_ASUS posted on 2019/12/26 04:27
    Hi Bruno~xD,

    For PUBG, our relevant team has confirmed that this would be an app issue and could ...
    It's not on Tecent because it's not happening only on PUBG, the same issue is happening on every game controlled by 2 fingers.

    I'm also having this issue since day 1, and I have this phone since it's launch.

    It's a shame that after 2 big updates of Android it's not solved yet, makes me wonder if it's not the poor quality hardware of the touch panel that is causing this.

    Call of Duty, Free Fire, Identity V, PUBG MOBILE and any other game that you control movement and camera at the same time are showing this flickening. Any version of the games, so it's not those apps. It's the system or the hardware.

    Bruno~xD said this app (MultiTouch Tester) helps to show the issue in touch, and it really helps.
    First - Slightly slide one finger on panel (slowly) - It's smooth.
    Second - Do the same by holding two other fingers (so three fingers on panel, only one sliding) - Smooth.
    Third - Now try holding one finger and slightly slide another, slowly - Not smooth, it flicks, causing this "jittery stutter". (I don't know if it's the right name for it, it's the name Bruno used.)

    I'm starting a tech channel on YouTube and i'll be showing it better on a video about all the bugs I already faced in ZenFone devices.

    But don't ask me for more videos, Bruno and Jonathan gave you all the needed to get this 2 years old issue solved!
  • ValeeraSanguinar posted on 2020/1/14 11:08
    Here is a video showing better, comparing 5 to 5Z:

    https://www.asuswebstorage.com/navigate/s/1435B5 ...

    Up til we get an answer bout what is happening.
  • ValeeraSanguinar posted on 2020/1/20 13:08
    Up til we get an answer bout what is happening.

    Said it in you post, I'll repeat it on mine.

    The only way is engaging people to test it and come enforce the post with their experience. I see people coming to read and just wait.

    You, reading this! Reproduce it, you can, every 5Z owner can. Comment here...maybe you can make a video. Show'em this is really happening! So they'll have to fix it, making a better experience for us all.
  • Bruno~xD posted on 2020/1/20 15:12
    Said it in you post, I'll repeat it on mine.

    The only way is engaging people to test it and come ...

    I'll be doing the same on Reddit and YouTube channels that are showing this issue.
  • JonathanSR posted on 2020/1/4 20:39
    same problem 🤣

    https://www.asuswebstorage.com/navigate/s/163CB1AD855942A5BA527606CF450B09Y ...
    Hi JonathanSR,

    Could you help us describe the problem in this video?
    Please help us indicate the time point in which the problem appeared.
    Please provide your firmware version: Settings > System > About Phone > Software information

    Please provide your PUBG version.
  • Jei_ASUS posted on 2020/1/31 12:56
    Hi JonathanSR,

    Could you help us describe the problem in this video?


    Firmware ZS620KL = Latest Firmware Version WW-100.04.44.98
    PUBG M version Latest 0.16.5
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