Display problem: green band at bottom when tilted?

Discussion in 'Zenithink ZT280 C91 & C91 Upgrade' started by clarkchong, May 15, 2012.

  1. clarkchong

    clarkchong Member

    Joined:
    May 15, 2012
    Messages:
    10
    Likes Received:
    0
    Trophy Points:
    60
    Tablet / Device:
    Zenithink C91 Upgrade
    I just got my Zenithink C91 Upgrade. My wife and I were both really excited about it as it is our first tablet.
    Problem started showing up on Day 2. A green band appear at the bottom of the screen while starting up ("Android" screen). We later noted that it may be related to tilting the tablet while starting, so we avoided doing it.
    But now, the band seems to appear more often, and came in different colors (red, yellow...) And sometimes the whole screen turns to that color.

    Have anyone had the same problem before? Do you know what is the cause of that and how can we solve that?
    Thank you!!
     
  2. suzook

    suzook Member

    Joined:
    May 16, 2012
    Messages:
    3
    Likes Received:
    0
    Trophy Points:
    60
    Location:
    Cyprus
    Tablet / Device:
    Zenithink c91 upgrade zt282
    Sounds like a loose connection to the screen which is a known issue with these models, However before you start panicing. Got mine 2 days ago and noticed a couple of green lines across the screen on the home page only. Ie didnt appear when playing videos or browsing app menus.

    Seems it is an issue with the build and launcher used. I installed Apex launcher and went to settings, dev tools and enabled the force gpu and since then no green lines
     
  3. clarkchong

    clarkchong Member

    Joined:
    May 15, 2012
    Messages:
    10
    Likes Received:
    0
    Trophy Points:
    60
    Tablet / Device:
    Zenithink C91 Upgrade
    Thanks Suzook for your quick reply! Mine happens during apps too, so it may actually be loose connection... Thanks for sharing your experience!!
    How do we know if it is really a loose connection? Is it difficult to troubleshoot this problem? Thank you!
     
  4. suzook

    suzook Member

    Joined:
    May 16, 2012
    Messages:
    3
    Likes Received:
    0
    Trophy Points:
    60
    Location:
    Cyprus
    Tablet / Device:
    Zenithink c91 upgrade zt282
  5. clarkchong

    clarkchong Member

    Joined:
    May 15, 2012
    Messages:
    10
    Likes Received:
    0
    Trophy Points:
    60
    Tablet / Device:
    Zenithink C91 Upgrade
    Thanks suzook again! The instruction seems a little bit scary - are you familiar with the risk associated with prying the tablet open? Was always worry that if I may lose something in the process :( No, I have not tried the ethernet connection yet, will try it tomorrow night and let you know~
     
  6. clarkchong

    clarkchong Member

    Joined:
    May 15, 2012
    Messages:
    10
    Likes Received:
    0
    Trophy Points:
    60
    Tablet / Device:
    Zenithink C91 Upgrade
    sorry, I didn't get a chance to try and probably won't have the time to do so in the next few days... :(
    In any case, here is another video showing how to fix the problem:
     
    Last edited by a moderator: Jul 29, 2014
  7. clarkchong

    clarkchong Member

    Joined:
    May 15, 2012
    Messages:
    10
    Likes Received:
    0
    Trophy Points:
    60
    Tablet / Device:
    Zenithink C91 Upgrade
  8. manohar2626

    manohar2626 Member

    Joined:
    Jul 17, 2012
    Messages:
    3
    Likes Received:
    0
    Trophy Points:
    60
    Location:
    Mumbai
    Tablet / Device:
    Zenithink ZT 2A C91

    Hi I got this tab 6 months ago and it has given me nothing but only problems......I got an issue with the touchscreen......touchscreen doesnt respond and but sometime starts operating by its own.....I tried calibrating it with usb mouse still no go. I upgraded it 4.0 from 2.3....still the same problem.....I tried calibrating the screen by pressing and holding the camera button still no go.....please help me.....
     

Share This Page

Search tags for this page
a green line has on my taplet
,
android green display
,
android has green lines
,
android tablet has green line on screen
,
fix green line in bottom of screen android
,
green display problem in tablet
,
green line on tablet screen
,
green line zenithink
,
how to fix green screen in tablet came
,
how to fix green screen on tablet
,
lines appearing at bottom of android phone
,
q584 display bottom green
,

tablet display problem

,
tablet screen display problem
,
tablet screen green lines
,
what is the cause of a green screen on android tablet
,
what would cause a green screen on a tablet
,
why does my tablet have a green line on the bottom
,
yellow colour appearing on screen tablet