Hello i got a question about how the phone control screen voltage ? if anyone know that
Does the software in the phone control it ?
Or does the screen it self control how much voltage it need ?
Thanks
/Reb00t
Reb00tas said:
Hello i got a question about how the phone control screen voltage ? if anyone know that
Does the software in the phone control it ?
Or does the screen it self control how much voltage it need ?
Thanks
/Reb00t
Click to expand...
Click to collapse
if by screen, you're talking about the digitiser, then the fact that people flashing Note 2 ROMs, kernels and recoveries can tell you (since they fried their digitiser chips) that the software controls voltage.
For the AMOLED display I am unsure but would hazard a guess it's also software, however, I've not seen anyone fry their display with Note 2 software.
rootSU said:
if by screen, you're talking about the digitiser, then the fact that people flashing Note 2 ROMs, kernels and recoveries can tell you (since they fried their digitiser chips) that the software controls voltage.
For the AMOLED display I am unsure but would hazard a guess it's also software, however, I've not seen anyone fry their display with Note 2 software.
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Click to collapse
Thanks for the fast reply Its because my screen just got very light last day. But they refuse to repair it cause i got custom rom installed cm mod 10.1
But im living in europa so they cant say the warranty is gone cause i rooted it and installed another rom.
So I just want to know if there next step will be "The rom damage your digitiser"
But if my rom should have damaged my digitiser, should it just be very light then ? or should it stop working 100% ?
After running cm mod 20 months this happen, and i got a friend with a stock s3 where this also happened.
digitizer is just th touch sensor, it's not the display
Related
I own my galaxy s3 for about 2 years. The Problem is, that i have serious screen burn in. I alway See a shadow of my keyboard when displaying a white image. Is there any way to fix this? I know that amoleds have this Problem, but i did not expect that after only two years
Send from my GT-9300 with Android 4.4.4
I'm having the same issue. Would love to know how to solve this. Although I think the only solution is replacing the screen.
2 years? It can happen in a couple of days if you leave a static image on the screen.
I read a while back that this might work but don't quote me on that. Also, I'm not responsible if anything bad happens.
Try putting your phone on max brightness, displaying a completely white picture and leave it like that overnight. Plug in the charger and keep the display from dimming and turning off.
Sent from my HTC One using Tapatalk
Okay i think ill try it. How much is it, if i replace the screen? Would you recommend to replace the screen or just wait a bit and buy a New phone?
Send from my GT-9300 with Android 4.4.4
New screen is 1/2 the price of the whole handset.
boomboomer said:
New screen is 1/2 the price of the whole handset.
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Click to collapse
Too Bad Do other Phones with amoled technology like s4,s5 have this Problem too? In other words: Will all amoled displays in the future get burn ins after a while or is it possible to reduce this effect?
Send from my GT-9300 with Android 4.4.4
hello, i broke my screen lately and i replaced it at a lab,after the repair my screen is sometimes flickering.
i think it was flickering from before the repair but after the repair it got worst,i am not sure.(if it was it was only at the top of the screen now..its every where)
does anyone have any ideas about the source of the problem ?
or if anyone know how to solve it even better
thank you for your help...
If still problem exist after screen replacement then I think there is problem in new screen, try again another screen if still it exist then may be there is serious problem with GRAPHIC IC ( I am not sure about this), You may have to change 220 in your Graphic IC which include soldering but seriously this is very(x3) risky, because any wrong thing can put your phone in nothing.
In case If you brought your screen from online site, then contact to seller and ask them for refund or another screen
Best of luck
veer.killerboy said:
If still problem exist after screen replacement then I think there is problem in new screen, try again another screen if still it exist then may be there is serious problem with GRAPHIC IC ( I am not sure about this), You may have to change 220 in your Graphic IC which include soldering but seriously this is very(x3) risky, because any wrong thing can put your phone in nothing.
In case If you brought your screen from online site, then contact to seller and ask them for refund or another screen
Best of luck
Click to expand...
Click to collapse
first of all thank you for your reply,
as i said i replaced my screen at a cellphone lab so you think i should go there again and ask them to replace the screen?
as i also said its not happening all the time... it can be flickering for 15 min and then nothing for another hour ( on & off)
no way its just a loose cable/connector some where?
xzfzx said:
first of all thank you for your reply,
as i said i replaced my screen at a cellphone lab so you think i should go there again and ask them to replace the screen?
as i also said its not happening all the time... it can be flickering for 15 min and then nothing for another hour ( on & off)
no way its just a loose cable/connector some where?
Click to expand...
Click to collapse
Stock ROM or custom one? Cause my screen flickers sometimes too, but I'm fairly sure it's due to adaptive backlight feature in most of the AOSP roms around
aardappel12 said:
Stock ROM or custom one? Cause my screen flickers sometimes too, but I'm fairly sure it's due to adaptive backlight feature in most of the AOSP roms around
Click to expand...
Click to collapse
viper ROM, any known issues?
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 guys,
I have a Redmi Note 4 Snapdragon with a screen replaced recently. The problem is the screen only works after the phone is booted, if I let the screen turn off, it can't be waken up again. There's still backlight, vibration and all and I still hear sound. Which means the touch does work, only the screen doesn't display anything, just black. What can be the cause of this? Thanks everyone!
I have exactly the same problem on a Redmi Note 2. And this problem is not so rare because i found a few posts with same symptoms but i cannot find a fix. If you please find, please let me know.
Can I ask you something cause I'm a technician and I face similar problem not exactly the same. Were your screens bought with frame already glued and you face that issue? Usually such issues occur when they is no duct tape (sorry for my English) at the lcd flex cable where it folds under the frame or where the backlight circuit (I don't know the correct explanation in English I hope you understand). So I needed at my phone to replace the frame as well that's why I bought a lcd with frame (that of course was terribly glued). My issue is blacklight flickering when it wakes from sleep and if I push the edges it's ok. I have replaced a lot of note 3 LCDs without frame and I know that in all of them I had to put duct tape to make them work properly and without issues, I had only one for note 3 pro SE that was properly made. So I believe both your issues as well as mine have to do with that. If you have the broken ones, take apart the new and check side by side the flex cables and if you find exposed connections compared to the original just put duct tape.
Sent from my Redmi Note 4 using Tapatalk
earthscaper said:
Hi guys,
I have a Redmi Note 4 Snapdragon with a screen replaced recently. The problem is the screen only works after the phone is booted, if I let the screen turn off, it can't be waken up again. There's still backlight, vibration and all and I still hear sound. Which means the touch does work, only the screen doesn't display anything, just black. What can be the cause of this? Thanks everyone!
Click to expand...
Click to collapse
Perhaps you might want to enlighten us as to which ROM are you using, and who is the manufacturer of the lcd display?
DarthJabba9 said:
Perhaps you might want to enlighten us as to which ROM are you using, and who is the manufacturer of the lcd display?
Click to expand...
Click to collapse
Hi, I'm using the Ressurection Remix ROM on Android 7.1.2, planning to update to Oreo soon with the Pixel Experience ROM. And the LCD manufacturer is Tralfagar.
earthscaper said:
Hi, I'm using the Ressurection Remix ROM on Android 7.1.2, planning to update to Oreo soon with the Pixel Experience ROM. And the LCD manufacturer is Tralfagar.
Click to expand...
Click to collapse
Well, I don't know about Trafalgar - but if the new display is has an ebbg chipset, then you may have problems. There have been issues with ebbg displays and TWRP (when using custom ROMs - see for example https://forum.xda-developers.com/re...redmi-note-t3716706/post74815338#post74815338). Does everything work properly when you reboot to TWRP recovery? If not, then this may be the problem - and you may need to change your ROM to the latest MIUI releases.
I am facing same problem
I have redmi note5/5+, using custom rom (ion), I am facing same problem, changed lcd two time, tried with other roms, but nothing improved, did you find any solution.
Hello
My Samsung S9 Plus 's screen suddenly turn off when I'm using
And then I only see the screen when set the brightness at highest or lowest.
The screen quality is realy bad even if I change resolution to WQHD+
Is there any body have the same problem like me?
I just want to know it cause by hardware or software problem.
Please watch the video (when I test issue) below
Thanks for reading
youtu .be/lH1N_MdXAPc
lesecr said:
Hello
My Samsung S9 Plus 's screen suddenly turn off when I'm using
And then I only see the screen when set the brightness at highest or lowest.
The screen quality is realy bad even if I change resolution to WQHD+
Is there any body have the same problem like me?
I just want to know it cause by hardware or software problem.
Please watch the video (when I test issue) below
Thanks for reading
youtu .be/lH1N_MdXAPc
Click to expand...
Click to collapse
Request warranty because that's not normal at all
Sent from my SM-G965F Duos
sentinelvdx said:
Request warranty because that's not normal at all
Sent from my SM-G965F Duos
Click to expand...
Click to collapse
Thanks, but my warranty is out of date. My local repairing store tell me that I have to change the screen because it's a hard defect.
I used to work in Samsung Display so I think it's not a display screen problem because the sound of phone's speaker also become terrible after that. Maybe it's just a power control problem but I don't have any technical support.
lesecr said:
Thanks, but my warranty is out of date. My local repairing store tell me that I have to change the screen because it's a hard defect.
I used to work in Samsung Display so I think it's not a display screen problem because the sound of phone's speaker also become terrible after that. Maybe it's just a power control problem but I don't have any technical support.
Click to expand...
Click to collapse
But for sure it's not software related.
I would go and ask for a formal quote where they affirm it's a display issue.
That way if they change it and issue persist they won't be able to charge you. Also first comment them that you are suspecting more a power issue related on the board, so they can do a test before they quote you the display change.
Not all tech support stores has qualified people, so you must cover yourself for not getting charge for things that weren't failing and just for the root cause
Sent from my SM-G965F Duos