Develop Bugs

Blank screen

I have been using CRC 12.11 for a while. A strange problem started all of a sudden. My screen went white although it is working. Soft reset didn't solve the problem. Hard reset solved the problem for a while and then it came back. I noticed this at the time it happens. While everything is fine, the screen fades out, a few lines like scratches appear and then the screen stays white. I hear system sounds, the phone rings but no display. What has caused this?
I flashed another ROM but when my phone restarted it was still white. I hard reset and now I am waiting. If it reappears, it means it is a hardware problem right?

andreasy said:
I have been using CRC 12.11 for a while. A strange problem started all of a sudden. My screen went white although it is working. Soft reset didn't solve the problem. Hard reset solved the problem for a while and then it came back. I noticed this at the time it happens. While everything is fine, the screen fades out, a few lines like scratches appear and then the screen stays white. I hear system sounds, the phone rings but no display. What has caused this?
I flashed another ROM but when my phone restarted it was still white. I hard reset and now I am waiting. If it reappears, it means it is a hardware problem right?
Click to expand...
Click to collapse
I had this same weird issue once on my rom, i think it's because of the Big storage bug.. Flashed OEM rom and went away.. only saw it once!

I reflushed several ROMs that I used to have before without problems and still have the same. I can't install OEM, I think it's because of the bootloader version but I don't remember exactly the procedure to correct this and I don't know if it's worth the effort in downgrading to OEM.

Another thing I just noticed is that the screen is not aligned in the center. There is a small gap on top of the screen as if the image has moved downwards. Maybe this is the cause of the problem. Noone had similar issue? I don't believe it has to do with big storage because I have been using it fot a while and this never happened before, not even once.
Any ideas will be apreciated as my only choice right now is to buy a new phone.

same thing
i´ve been looking around and some people say is because the magnet in the pouches, affect in some way to the screen ribbon or something like that.

that is a common problem with the hermes, if u search the forum u'll find a couple of threads like this.
it's a hardware problem, next symptoms will be the green/red buttons and d-pad stoping to work

I know theres a few links in the FAQ about the white screen issue, its fixable in some cases.

problem solved!!!
i just took it apart, one of the ribbons which connect the green and red buttons was kindda folded also the connectors , so i just blow some compress air and tried to unfold the ribbon, put it back together and voila! like new. Just be carefull cause it´s like fragil.

same exact problem word for word
The same exact thing happened to my hermes. I guess I can attempt to put mechanical skills to work and fix this problem.

[Q] LCD stopped working .. Could it be software (root) issue?

Hello XDA ..
My G2 LCD stopped working for no reason .. It started flickering and losing colors two days ago .. and yesterday it went completely black .. I did not drop the phone or damage it anyhow ..
I opened it up and checked all connections and it looked fine .. the LED and digitizer screen work fine as well as the capacitive buttons at the bottom so I figured it is not a connection problem ..
I had Cyanegon on it for like 5 months and never had an issue .. I recently installed Virtious Sense ROM and I have been switching between the two the past week ..
My question is ,, do you think it is a software problem for example the lcd driver got messed ..?? or is it just the lcd was broken somehow
I am intending to buy a new lcd and replace the one I have now but I thought I should make sure that the one I currently have is actually broken before I replace it ..
Thank you,,
Edu
PS: if you can think of an easy way to check the functionality of the LCD let me know ..

Its rather hard for a software (even if it is firmware) to cause problems to an LCD. If you can se the backlight turning on but the screen not showing anything, i suggest you start trying out some unbricking methods.
Now, if the screen doesnt turn on AT ALL, then its possibly a hardware fault. The only way to be sure is to have an extra lcd available to connect to it. You could also try and give your lcd to someone with a Desire Z to try out your lcd on his phone and see what happens.
The "easiest" way though is to get a new one.

is the ribbon cable connecting the screen to keyboard damaged?

dumraden
Click to expand...
Click to collapse
the backlight does not turn on at all .. so I guess you are right it should be a hardware issue
thanks for the suggestions
evilcuber
Click to expand...
Click to collapse
yeah it is connected .. I have checked all the connections before posting
thanks for helping

same happened to my phone

Screen Glitch/Flickering - Software or Hardware Issue?

I've been having this problem since the other day. The day before that, the phone's just working perfectly fine, tho, when I woke up in the morning, the phone just suddenly got this screen glitch. It only seems to be having a glitch in dark backgrounds... But given some time, the glitch disappears, but then again, if I turn off the display and leave it some time, the problem reappears.
Please look at the vid.
I don't think it's a hardware problem since the splash image isn't affected and the glitch seems temporary, but changing ROMs doesn't help. I haven't tried the stock firmware tho. Gonna download the stock fw and try it and see if the problem still persist.

Hi,
It's a hardware issue.
It's not related to any ROM you're using.
I've same problem as you and I decided to return it to stock and sent it to the nearest Asus Service Center (in Makassar) via my local seller because there is no one here in my location.
Sent from my GT-I9500

its not hardware issue if that not happen when you use screen recorder.
give a try then...

@baonxxx
This isn't related to software. I had this screen glitch even on stock (applies to everything: Splashscreen, etc) and caused difficulties on normal usage.
By general you can trigger this screen glitch by let the phone heating for a period of time, like let the phone idle for hours, charging, or let the screen on around the time. *only on affected devices*
You may need to read OP once again.
Sent from my GT-I9500

krasCGQ said:
@baonxxx
This isn't related to software. I had this screen glitch even on stock (applies to everything: Splashscreen, etc) and caused difficulties on normal usage.
By general you can trigger this screen glitch by let the phone heating for a period of time, like let the phone idle for hours, charging, or let the screen on around the time. *only on affected devices*
You may need to read OP once again.
Sent from my GT-I9500
Click to expand...
Click to collapse
as u can see in the video , it doesn't really affect the splash screen, tho if flashing back to the original fw doesn't help, then I may need to get it to Asus Service Center for them to check.

xCalibur15 said:
as u can see in the video , it doesn't really affect the splash screen, tho if flashing back to the original fw doesn't help, then I may need to get it to Asus Service Center for them to check.
Click to expand...
Click to collapse
I know that, but when the screen glitch becomes worse, it would happen on everything.
Sent from my GT-I9500

krasCGQ said:
I know that, but when the screen glitch becomes worse, it would happen on everything.
Sent from my GT-I9500
Click to expand...
Click to collapse
hhmm, not really everything, only glitches on dark backgrounds... seems like the screen on my phone's having a problem on dark backgrounds.

it is definitely a HW issue. did your phone ever fell on the ground?
this usually happens when there is loose connection between the mainboard and the display.
if you haven't void the warranty, send it for repairs, otherwise open the phone and fix it yourself (just detach and properly reattach the display connector, and make sure it's grounded properly).

@pecholino
Only unlocking the bootloader with official method provided by Asus could void the warranty.
Sent from my GT-I9500

damn it's a HW issue and it's getting annoying... gonna send it back for repairs... damn I didn't even dropped the phone once, so much for ASUS.

It happens with me too. On stock firmware. But is very rare and temporary. Turning off the screen and then again waking up solves it.

Rud09 said:
It happens with me too. On stock firmware. But is very rare and temporary. Turning off the screen and then again waking up solves it.
Click to expand...
Click to collapse
it happens to me on stock as well. Same as yours turning off the screen and waking it up makes it normal. so it's not a firmware problem? or is it?

Pause08 said:
it happens to me on stock as well. Same as yours turning off the screen and waking it up makes it normal. so it's not a firmware problem? or is it?
Click to expand...
Click to collapse
I don't think this is a hardware problem as so many people are having this problem.

This problem happened to me the next morning after I updated to 2.20.40.168 I didn't drop me phone in between the time I updated and the time I first seen it happen. I've already sent my phone in and Asus replaced my motherboard. I got it back and problem was still happening.

The problem may go away for you if you set Developer Options, Disable HW Overlays but the setting does not seem to persist after a reboot.

quick settings
I noticed another remarkable phenomenon. When I open the quick settings, the defect is gone. But I only can operate in the quick settings, nothing else.
The screen freezes until I open the quick settings. -
I have reinstalled all software, even the boot partition. The defect already occurs in the splashscreen and fastbootscreen. -
I have opened the plug connection to the screen and connected again. -
So far everything in vain. -
ASUS claims, it is a defect on the motherboard. - I am afraid they are right.

It is a hardware issue. The problem is with the screen, precisely, the multiplexer on the screen. But since it is a part of the LCD itself, you will have to get the entire display module replaced.
Replacement displays are available on eBay/Amazon and you can get instruction guides on YouTube.

If your phone type z00AD Try downgrade your rom only to 2.12.40.11.. its solved my problem..
Sent from my ASUS_Z00AD using Tapatalk

Phone working but screen black

Hello everyone,
I have since the first time an LG G3 (D855) that I root and that works very well.
Recently I bought a new one from a friend for my girlfriend.
He never root it, he reset it and sent it to me by mail.
At the reception, I turn on the phone and there, I have the LED lights, sound start but nothing on the screen.
It reacts when I put the finger on the screen so the touch sensor works.
I try a restart and battery removal but nothing better.
The screen has no shock but I told myself that perhaps during the trip he took a bad cut.
I hope it's just a miswired table, so I dismounted to check, but still nothing.
ThenI try something, I disconnect my phone too and I swapped motherboards.
And then the screen with my card in it work.
While my screen with the motherboards of the phone I just bought stay blank.
So the screen is not broken, perhaps it was a install problem.
So I use LG Flash Tool to reinstall the original rom (following a tutorial )
Everything goes well and ends without worries.
But that didnt change anything, the screen is still black.
Do you have an idea ?
Thank you in advance for your assistance and sorry for my bad english

I just realized that if I strongly illuminates the screen I can see that it works.
It' like brightness was at zero.
It's not a screen problem because when I plug it to the other motherboard brightness is ok.
Someone had this issue?

Same problem here
So I'm having the same problem at the moment, but this is the 2nd time that this has happened to me. Last time. I fixed it by changing charger. It worked for like 2-3 month and then I switched again and the problem came back. I suggest you try a few charges. It took around a week before it got fixed.
Hope it'll work for you.
BTW it was a Nokia charger

Black screen G2 after some seconds even during boot...
EtreRe said:
I just realized that if I strongly illuminates the screen I can see that it works.
It' like brightness was at zero.
It's not a screen problem because when I plug it to the other motherboard brightness is ok.
Someone had this issue?
Click to expand...
Click to collapse
Exactly the same problem on my LG G2.
It often go to black screen, but it's not totally OFF. Touch work, and the screen the same, i noticed using a torch that the brightness when to something like zero, but if i increase the level, it stay dark. Only press power button sometimes come back, but few second later... Dark screen again.
It happens everywhere during boot, in home, in lockscreen, in TWRP.
I tried:
- Change rom
- Flash stock firmware...
- Totally switched off for 2 months
- Detach and reattach the screen
- Test proximity sensor in hidden menu
Nothing worked.
If anyone has an idea...

Samsung Galaxy Tab S with strong yellow tint - is it broken?

Hey guys.
Maybe one of you can help me with the yellow screen. Wha is the problem and what exactly is broken? The display has no cracks and the device ist working properly.
When I bend the tablet, the yellow tint disappears... Maybe a connector problem? Does anyone have experience with it?
Please check my video with the problem.
Thx.

I have the same issue ?

I can't tell you for certain, but you are definitely talking hardware error. Your obvious first step is to open it up, check ( remove then re-attach) the display connects , if problem persists then its a display thing. There is no display fix possible, you either get another, or another tab.
I could be wrong but that's my opinion: )

Got the same problem. However when I bend it like you in the videonit gets back yo normal colour screen and it stays like that for some time. Is it possible it's to connection? Have you solved your problem?, THX