Hi,
My S4 half screen is not working. The touch fuctionality works perfect but i cant see the half of the screen. When I start the camera or video option, the complete screen works perfect. When I open a hd movie in full screen, the complete screen works perfect. When I switch to home panel or OS functions, I loose the half of the screen again.
I was told that is a problem with the cpu/gpu switching. Every thing looks perfect on gpu.
I already tried "Force GPU Rendering", I opened my phone and verified the display connector unplugging and plugging it with no result.
Is possible to set the phone to use only the gpu?
Is that even possible?
My phone is a Galaxy S4 rooted with kitkat 4.4.2
Sorry for my ignorance and any help is welcome.
PD. My guarantee is done but i have the ensurance that cost $150 deductible for a new one
Related
A few weeks ago i, accidently, dropped my Z2. As a result of this my touchscreen was broken :crying:
My reseller told me that he could sent it to sony but that the costs would be high. App. 200 € ! He advised me to go to a tird party phone repair centre.
So i did. They placed a new touchscreen for 150 €. At first sight the screen works perfect and the colors are perfect. But.... sometimes when i'm typing a message
the screen does not capture my touch? Then i need to touch the screen multiple times to get a reaction. But it's a bit strange. When i'm in my bed with the lights out
the screen captures perfect?? When i use antutu Multi-touch test the screen works perfect! In light and dark conditions!! Is it a hardware issue? A sofware issue.
I tried multiple roms. I tried stock rom. But the problme remains. Anyone who has an idea?
ps Sorry for my bad English!
curtricias said:
A few weeks ago i, accidently, dropped my Z2. As a result of this my touchscreen was broken :crying:
My reseller told me that he could sent it to sony but that the costs would be high. App. 200 € ! He advised me to go to a tird party phone repair centre.
So i did. They placed a new touchscreen for 150 €. At first sight the screen works perfect and the colors are perfect. But.... sometimes when i'm typing a message
Click to expand...
Click to collapse
I work at a third party phone repair center in Lebanon, and from my experience external sources screens aren't as good as the producers screens, 30%+ of the screens we replace got issues.
the screen does not capture my touch? Then i need to touch the screen multiple times to get a reaction. But it's a bit strange. When i'm in my bed with the lights out
the screen captures perfect?? When i use antutu Multi-touch test the screen works perfect! In light and dark conditions!! Is it a hardware issue? A sofware issue.
I tried multiple roms. I tried stock rom. But the problme remains. Anyone who has an idea?
Click to expand...
Click to collapse
From your tests you can say its a hardware problem, you can't always expect perfect results from external sources.
I know But it's a bit strange that sometimes it works perfect.
And i just figured out why the screen works perfect at night. When i'm in bed i use the app twilight.
This app filters some light frequencies and dimms the screen. When this app is active the screen works normal!
It seems that it's a brightness issue?
I believe some faulty ICs in the screen are being overheated as high light frequencies are being used so causing the touch layer to stop working.
Sry, for my bad English. But you should check again the store that replaced your screen. :/
Hello all!
I have dropped my S3 (by accident, of course) and managed to completely break the touchscreen and display (no image). I ordered a replacement screen for i9300 (marketed as original) and replaced it myself (not the first time I replace screens on embedded devices). At first everything worked fine but with increasing frequency I get flickering and a fade out effect on the screen. A video will illustrate this better:
I've looked into the ribbon connector that connects the screen to the motherboard and cleaned it with alcohol and it made no difference.
The flickering effect appears also in the bootloader or recovery, so it's not android related. I also deactivated GPU rendering in Developer Settings.
My question is - has anyone seen this before? Am I looking at a bad replacement screen? Maybe a bad board (something that might have broken when it fell)? A bad contact?
I'd like to fix it somehow but I don't know where to start.
Thanks
mad_ady said:
Hello all!
I have dropped my S3 (by accident, of course) and managed to completely break the touchscreen and display (no image). I ordered a replacement screen for i9300 (marketed as original) and replaced it myself (not the first time I replace screens on embedded devices). At first everything worked fine but with increasing frequency I get flickering and a fade out effect on the screen. A video will illustrate this better:
I've looked into the ribbon connector that connects the screen to the motherboard and cleaned it with alcohol and it made no difference.
The flickering effect appears also in the bootloader or recovery, so it's not android related. I also deactivated GPU rendering in Developer Settings.
My question is - has anyone seen this before? Am I looking at a bad replacement screen? Maybe a bad board (something that might have broken when it fell)? A bad contact?
I'd like to fix it somehow but I don't know where to start.
Thanks
Click to expand...
Click to collapse
I might be just speculating, but i truly believe that is something wrong with the GPU. The contacts have nothing to do with it, so the only possibility is that the balls have cracked. That is my educated opinion. You could go and get your PCB reballed at any good GSM service.
Alexander_the_B0ss said:
I might be just speculating, but i truly believe that is something wrong with the GPU. The contacts have nothing to do with it, so the only possibility is that the balls have cracked. That is my educated opinion. You could go and get your PCB reballed at any good GSM service.
Click to expand...
Click to collapse
Thank you for your input. Would the effect happen even in bootloader (e.g. is the GPU the only component talking to the display)? Also, if I were to connect a HDMI (through a dock) should I expect to see the same behavior? I guess that if it behaves the same way, then yes, it's certanly something on the motherboard that's broken...
mad_ady said:
Thank you for your input. Would the effect happen even in bootloader (e.g. is the GPU the only component talking to the display)? Also, if I were to connect a HDMI (through a dock) should I expect to see the same behavior? I guess that if it behaves the same way, then yes, it's certanly something on the motherboard that's broken...
Click to expand...
Click to collapse
Yes, because the GPU's only task is to turn on pixels on the display to make Graphics. It will happen even via HDMI (MHL). There is no way to bypass the GPU. Assuming that display is 100% working. Try and see if the display is not defective and get a replacement.
Hi Everyone
So I've been having issues with the touchscreen for Kindle fire HDX 7" tablet. I have spoken to Amazon customer service which was no help and the only help they offered was for me to buy a new Kindle which is unacceptable in my opinion.
When I first turn on my tablet everything is working fine with no issues, but after some light usage and maybe some internet browsing it starts to lock up. It almost seems like there's some memory leak issue where the RAM fills up too fast causing the device to become unresponsive. Some parts of the screen becomes unresponsive while other parts of the screen work ok especially when using the keyboard. The tablet seems to be completely responsive again if I press the power button where it takes me back to the homepage but only for like 2 minutes and then starts to do the same thing again. One thing to note is it's not always the same area of the screen that becomes unresponsive.
I have tried doing a factory reset, hard reboot, and even used a custom ROM (CM 11 using Safestrap v4). I am still getting the same issue so now I believe it's some sort of hardware issue but not sure which. I would like to see if I can fix this as I did spent over 240 dollars on this device. Could it be the screen display and digitizer causing this issue or something else? There are no cracks in the screen and I do not believe it was ever dropped. If anyone can shed any light on what could be the problem that would be fantastic.
-Thanks
Matthew
I wanted to run my cracked screen phone as an emergency phone, so I purchased the whole front and this is the situation:
VIDEO
Every time I start the phone with the old display and then while it's working I replace it with a new one, it works fine until I restart it. Conversely, it works the same, every time I start the phone with a new display, the halves of the screen are swapped until I restart the phone with the old display.
hello. looks like the controller ic is broken.
In short: Bought a used Tab S6 and the screen recognize my fingers flawlessly, but it won't recognize my Spen
Things I've tried already:
Going into settings and changing stuff, did nothing
Factory reset, nothing
Try another spen, nothing
Try the spen on other Samsung devices, works like a charm with both writing and button usage
It is to note that the screen is kinda badly glued into the device so maybe they changed the screen and didn't connect the ribbons correctly? Or the screen they installed just doesn't work with the spen?
Searching online I came to a post which suggested using the menu from *#2663#, I dialed those numbers and all the Wacom text says as following:
FW Version of WACOM IC: Not Supported
FW Version in Kernel Image: Not Supported
Tuning Version of WACOM IC: Not Supported
I believe this is at fault from being unable to use the Pen? There's two buttons down that text, only one is clickable, "Wacom FW Update (Kernel Binary)" when pressed says it's updating and must not be turned off, but it remained in that state for over an hour with nothing happening, the device turned off and nothing changed
Returning the tablet is not an option so I would like to know if I can fix this or just accept that it will not work with the spen
Solution 1: Clean the screen.
Solution 2: Reset touchscreen calibration.
Solution 3: Install the latest updates.
Solution 4: Two button shutdown (Surface Pro only)
Regards,
J Wick
James wick said:
Solution 1: Clean the screen.
Solution 2: Reset touchscreen calibration.
Solution 3: Install the latest updates.
Solution 4: Two button shutdown (Surface Pro only)
Regards,
J Wick
Click to expand...
Click to collapse
I believe this is for Wacom tablets on Windows devices? My problem is on a Samsung Tablet Tab S6, which runs Android and uses Wacom tech for it's Spen
accept the fact that the tablet will work without sp3n. they cut the flat. it happened to me with a note 4
same as your problem but on tab s7, have you found any solution?
I couldn't, sorry, ended up gifting the tablet and getting a S7 FE. Kinda miss the Oled screen and the extra powerful processor. The S7 FE lags heavily with HD content at 60fps on YouTube lol
What I could find though was a menu you accessed via the phone dialer on the tablet, you know, those secret config settings? There was an option to reboot the Wacom controller. It didn't work for me but it may for you. I don't remember what was the code to put on the dialer tho, you'll have to search for it
Edit: lol I put that code in my original comment
My tablet was bought used and the screen was badly glued to the frame, so my hypothesis was that the previous owner replaced the screen and 1. Didn't properly attach the Wacom connector 2. The screen they used couldn't be used with the Wacom digitizer
Hope this is some help to you
peppet said:
accept the fact that the tablet will work without sp3n. they cut the flat. it happened to me with a note 4
Click to expand...
Click to collapse
Sorry, but what did you meant by cut the flat?
I mean the cord has been cut