[Q] LCD stopped working .. Could it be software (root) issue? - G2 and Desire Z Q&A, Help & Troubleshooting

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
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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
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Click to collapse
yeah it is connected .. I have checked all the connections before posting
thanks for helping

same happened to my phone

Related

HTC One X Screen won't turn on, touchscreen still work???

I have been using the HOX for over 2 months now but this morning my phone display suddenly doesn't turn on even the backlight key still on and touchscreen still work ( when I sweep my finger up the unlock sound still play, and I can even adjust the volume of the phone, etc... ) I have no ideas if this is a software or hardware problem and how to solve it, I'm still on Stock Rom, Stock Kernel,... Please help me
try to reboot pressing power button for 10 seconds, if it'll not work, it can be hardware problem, as i understood you haven't unlocked it, so you can send it to htc and they will repair it, or if you can, you can change it by yourself,
have you tried starting in bootloader and factory resetting?
glukosio said:
try to reboot pressing power button for 10 seconds, if it'll not work, it can be hardware problem, as i understood you haven't unlocked it, so you can send it to htc and they will repair it, or if you can, you can change it by yourself,
Click to expand...
Click to collapse
Yeah I tried to reset the phone, ai first it worked. But when I turn the screen off and doesn't use it for a few minutes, the problem is back again, It's really odd, I have heard about lots of HOX Screen problem but I haven't seen this one before
So the screen works in bootloader?
maxilick said:
So the screen works in bootloader?
Click to expand...
Click to collapse
Sometimes it does, sometimes it doesn't. Really weird, it feels like the phone has woke up but the display still "think" that it still in standby mode
Hardware fault for sure.
Same Problem
Hey, ive been using my international HTC One X for about two months too now and there have been no problems. ever since the update to 4.0.3 ive been facing exactly the same problem. The screen does not turn on a lot of the time but the touch is active. Have you found any solution to it?
It would be great if you could help me out.
Thanks
mr1029x said:
I have been using the HOX for over 2 months now but this morning my phone display suddenly doesn't turn on even the backlight key still on and touchscreen still work ( when I sweep my finger up the unlock sound still play, and I can even adjust the volume of the phone, etc... ) I have no ideas if this is a software or hardware problem and how to solve it, I'm still on Stock Rom, Stock Kernel,... Please help me
Click to expand...
Click to collapse
I have the same problem now. Using it completely stock, the screen doesn't turn on. Well.... Except for the times I visit the Vodafone shop to get it fixed....
Their first reaction was a defect in the screen, so they ordered a new one. I brought it yesterday again and it is now in for repair.
I don't know if this will solve the problem. How did they fix yours?
Sent from my HTC One S using xda app-developers app
JacoA said:
I have the same problem now. Using it completely stock, the screen doesn't turn on. Well.... Except for the times I visit the Vodafone shop to get it fixed....
Their first reaction was a defect in the screen, so they ordered a new one. I brought it yesterday again and it is now in for repair.
I don't know if this will solve the problem. How did they fix yours?
Sent from my HTC One S using xda app-developers app
Click to expand...
Click to collapse
I can't believe it...
I get my HOX fixed last week and I worked normally again. But after 2-3 days, the problem is back again. I contact HTC and they said they even replaced my MOTHERBOARD and Screen. Wtf is happening???
،،
hey guys
I had this problem a month ago, i know its frustrating.
anyway the only solution is factory rest from boot loader and flash RUU (worked for me)
the first time i had it, i did a factory reset, all my pics music were gone, phone went back to normal( stock, locked)
after a day the problem appeared again, second rest.
flashed RUU and the problem is gone. thanks god i have been using my HOX about a month science that problem and every thing is working great.
im sure its a software issue and I recommend every one to back up their files(pics,music)
just flash RUU and good luck
Lol, exactly the issue I had recently had with mine. Sent it backto htc, let's see what they would do about it.
Sent from my HTC Sensation 4G using Tapatalk 2
My colleque has the same issue with his One X.
It started with suddenly everything on his screen looking "zoomed in", so everything double size, looking ugly as a mofo, and not usable. After locking the sceen and unlocking again, it was fine.
Monday suddenly also screen didn't want to turn on anymore. Did the hard reboot for him, and it worked again... Untill he locked his screen and wanted to unlock, same issue.
Also, that time when doing the hard reboot, screen didn't turn on at all. Did another one, and worked again.
He's now sent it in for repair, this definately sounds like ahrdware issue, even full reset through bootloader didn't help.
mhulsegge said:
My colleque has the same issue with his One X.
It started with suddenly everything on his screen looking "zoomed in", so everything double size, looking ugly as a mofo, and not usable. After locking the sceen and unlocking again, it was fine.
Monday suddenly also screen didn't want to turn on anymore. Did the hard reboot for him, and it worked again... Untill he locked his screen and wanted to unlock, same issue.
Also, that time when doing the hard reboot, screen didn't turn on at all. Did another one, and worked again.
He's now sent it in for repair, this definately sounds like ahrdware issue, even full reset through bootloader didn't help.
Click to expand...
Click to collapse
Yup, exactly the same problem I'm having, I sent it to HTC, they said they fixed it by replacing the motherboard, but now it is happening again, I will have to send to HTC again.
This just happened to my phone... Has anyone else solved it? Is reset and flashing RUU the solution?
mr.dj26 said:
hey guys
I had this problem a month ago, i know its frustrating.
anyway the only solution is factory rest from boot loader and flash RUU (worked for me)
the first time i had it, i did a factory reset, all my pics music were gone, phone went back to normal( stock, locked)
after a day the problem appeared again, second rest.
flashed RUU and the problem is gone. thanks god i have been using my HOX about a month science that problem and every thing is working great.
im sure its a software issue and I recommend every one to back up their files(pics,music)
just flash RUU and good luck
Click to expand...
Click to collapse
I have the same problem right now.
It started last week when I was using Flipboard and suddenly everything started zooming in and stuff (same as mhulsegge above). It was resolved by locking my screen and unlocking it.
Last night, i've been getting the black screen when I try to unlock my phone. The touchscreen still works but the screen is just blank. It turns on if I keep locking and unlocking, but it's getting annoying.
My phone is an international One X (duh) bought in Hong Kong and I'm currently living in Canada so it would not be possible to send it back for repairs. Plus my phone is rooted and I am currently using the latest MIUI ROM (2.9.21). I have been using an app called "Sleep" which tracks your sleeping patterns. It requires you to place your screen face down on your bed when you sleep and the accelerometer will track your sleeping patterns and wake you up at the most optimal time. I assume that for the accelerometer to work the screen has to be on, so I am wondering if this can be a screen malfunction (overheat or overuse) problem since the screen has been on for so long (every night when i sleep for around a month).
Since sending it back is out of the question for me because of where I am living right now and I have voided my warranty, I am downloading other ROMs as we speak and seeing if it is a problem with my ROM. I will keep you guys posted.
-edit- I have tried factory reset and reinstalling my ROM (with a full wipe). Still doesn't work.
It´s probably not your rom since I use CM10 hand have the same problem and others have even been running stock and had this problem. The only one who seems to have solved this (at least in this thread) flashed RUU, so guess I´ll go try that now...
Would be great to hear if anyone else has solved it, and how!
edit: This has to be a hardware problem, if I push on the screen it starts working! Its like something is loose, and when i press on the screen it gets connected again.
nicke666 said:
It´s probably not your rom since I use CM10 hand have the same problem and others have even been running stock and had this problem. The only one who seems to have solved this (at least in this thread) flashed RUU, so guess I´ll go try that now...
Would be great to hear if anyone else has solved it, and how!
edit: This has to be a hardware problem, if I push on the screen it starts working! Its like something is loose, and when i press on the screen it gets connected again.
Click to expand...
Click to collapse
Good tip, but I tried a gentle two-fingered push (zoom pinch) and the backlight turned itself on with very little pressure, certainly not enough to flex the screen. I believe that it is a state issue related to zoom, but will try again and report if the issue returns.
Screen black after replacement lcd display unit
Hi,
My HOX touchscreen was broken, the touch and everything was still working. I ordered a replacement lcd display Unit and replaced the complete display and touch. After replacement the screen is completely black but the phone still works. The touch buttons on the bottom still work and i can use the volume buttons. I replaced the lcd display unit very carefully and i am sure nothing is broken etc. So the touch is working but the screen is black. I tried 2 display units and both show me a black screen.
Does anyone know how to solve this problem? Did i forget to do something during the replacement?
Please, i need some help with this issue.
OneX has too much issue with Screen . WTF with HTC?

Please HELP : Freezing Lock screen and problem with touch screen.

Hi All,
I have a rooted (boot loader unlocked) HTC Wildfire S Marvel (A510E)
It has a strange problem. The lock screen freezes every time after locking and I have to try about 6 to 7 times to unlock it.
This is Common across all the ROMs that I have tried including stock and many Custom ROMs.
Also, two stripes of portion of the phone's screen i.e., upper side and left side doesn't work at all.. Not even touch.
For ex; I can't type alphabets 'q' and 'a' in qwerty keyboard. However, display is working. not touch.
The warranty of phone is expired and I really want to know if there is any way that I can fix either or both of these problem in home.
Any help will be much appreciated.
Kindly inform me if I posted this question in wrong area as I am totally new to this forum.
The lockscreen 'freeze' generally happens to everyone,even me,when I use the scary governor.It also happens for stock users.Did your screen die due to excess heat at that area I.e.do you use it in extremely hot conditions?
Lock screen > Grounding issue
I bought Wildfire S day before (New but without warrenty) and it was working very good. When i charge it full and then started using it its lock screen in not responding well. After doing 5-6 retries i was on the home page. Opened menu and tried to click on Favourites or Downloaded icons, it not working. Sometime it does but i cant open downloaded apps page. Similarly its back button is totally not working.
I charged it from my other HTC charger and then then problem was over. I worked well. But again after some time same problem started. I have searched over internet and seen similar problem in HTC Sensation for grounding. And there is a way out given too... But no such procedure can be applied to Wildfire S.
Can anyone suggest any solution?
Thnx.. Nope..
SunnyChrono6 said:
The lockscreen 'freeze' generally happens to everyone,even me,when I use the scary governor.It also happens for stock users.Did your screen die due to excess heat at that area I.e.do you use it in extremely hot conditions?
Click to expand...
Click to collapse
Thnx for the reply... Nope.. It started to behave that way after I dropped it once.. I didn't drop it from distance.. It was just a small impact....
sghegde87 said:
Hi All,
I have a rooted (boot loader unlocked) HTC Wildfire S Marvel (A510E)
It has a strange problem. The lock screen freezes every time after locking and I have to try about 6 to 7 times to unlock it.
This is Common across all the ROMs that I have tried including stock and many Custom ROMs.
Also, two stripes of portion of the phone's screen i.e., upper side and left side doesn't work at all.. Not even touch.
For ex; I can't type alphabets 'q' and 'a' in qwerty keyboard. However, display is working. not touch.
The warranty of phone is expired and I really want to know if there is any way that I can fix either or both of these problem in home.
Any help will be much appreciated.
Kindly inform me if I posted this question in wrong area as I am totally new to this forum.
Click to expand...
Click to collapse
Maybe you damaged the digitizer. Search for a new digitizer on net and replace it yourself. You can find guides for it online.
MoeenRana said:
I bought Wildfire S day before (New but without warrenty) and it was working very good. When i charge it full and then started using it its lock screen in not responding well. After doing 5-6 retries i was on the home page. Opened menu and tried to click on Favourites or Downloaded icons, it not working. Sometime it does but i cant open downloaded apps page. Similarly its back button is totally not working.
I charged it from my other HTC charger and then then problem was over. I worked well. But again after some time same problem started. I have searched over internet and seen similar problem in HTC Sensation for grounding. And there is a way out given too... But no such procedure can be applied to Wildfire S.
Can anyone suggest any solution?
Click to expand...
Click to collapse
HTC phones have severe problem of screen not responsive when connected to a power source, may it be a USB or a charger. I had that problem before I got my phone serviced. It was completely resolved.
Just use original charger and make sure the power plug you are using has proper wiring. I mean proper earthing.
I faced same problem few months ago,I send it in HTC customer care .they replaced front panel
Sent from my HTC Wildfire S A510e using xda app-developers app

note 2 lcd or mainboard problem

hi.
i need help, i never faced that problem with any phone i and i googled and try to find if someone else had similar problem but i find nothing.
everything started when i droped a phone. the screen get something i called a dirty layer over screen. it does not change whatever rom i flashed so it is hardware issue. the problem responding to a brightness slider sometimes when im leaving phone over night it has that layer in all brightness slider spots and for about 5 minutes of using phone this layer gone when i moving slider to 80-90 % of brightness. i opened the phone checked and clean lcd connection and the problem remains.
i have not spare lcd or mainboard to checked so i need if someone recognise that problem and what is it.
see the video please.
http://youtu.be/kvKpAuDZ-rw
nule4 said:
see the video please.
http://youtu.be/kvKpAuDZ-rw
Click to expand...
Click to collapse
can't see video
im sorry, i think the video is now ok.

[Q] Stuck in boot load after screen replacement

So, my screen cracked by itself but I didnt get it fixed on the warranty.
Anyway, I bought a new screen from ebay, seemed allright.
Got it yesterday. Took off the old cracked screen, maybe a bit hard cause now its super broken.
When I put the new one in the phone doesnt boot. Just shows the Sony logo then reboots in infinity.
I did PC Companion repair which didnt say anything special just that it got the work done. Still the same problem.
Did the Sony Emma program which should flash the phone the offical way, right? No problem according to the program but when I try to start the phone the same problem.
Tried flashtool and flashed the phone with official..hmm ftf file. Still the same problem.
If I connect the old, very broken, screen the screen lights up all the time on the back side of the screen (the screen doesnt show anything on front side since its really broken) but dont know really if it kind of works.
So, did I screw up the phone when I took the screen off and broke something or could a faulty screen (the new one) actually be what causes the boot loop? That seems weird to me but i gotta ask. If the phone was really dead Emma or flashtool would say so right?
Any thoughts?
Thanks
Some new information. With the old broken screen I can connect the phone to the computer and the phone pops up in explorer. Which it doesnt with the new screen. Bloody what,
bunke84 said:
Some new information. With the old broken screen I can connect the phone to the computer and the phone pops up in explorer. Which it doesnt with the new screen. Bloody what,
Click to expand...
Click to collapse
Is the "new" display unit original from Sony or a chinese replicat?
If not original, i think it is a hardware problem (chinese crap...)
moonryder said:
Is the "new" display unit original from Sony or a chinese replicat?
If not original, i think it is a hardware problem (chinese crap...)
Click to expand...
Click to collapse
Yes, its a chinese copy. So that is probably my problem.
But since it will take months to get a new one any other ideas would be very nice.
Its just weird to me how the screen causes reboots, but I guess thats it.
Hi, did you manage to get it working with an original screen?
I have the identical problem.
Same problem
I have the same problem has anyone resolved the issue
Thanks in advance

Samsung Galaxy Grand I9082 Safe Mode problem after changing the touch screen.

Guys i just got problem with my Mobile i have changed the touch screen few times from repairing shop but every time it comes with a new proble. i just bought a new touch screen from the hardware shop and replaced it by myself. now touch is working fine but there is another problem it just starts in safe mod. i have restarted it many times but the problem remains the same. i checked it with the old touch panel and mobile starts in normal mod with that. can you guys help me out with this? I will be thankful to you guys. Sorry for my English.
I think you have bought an incompatible screen. try connecting older ones or buy a new one
While rebooting the phone keep tapping the left most button (what ever that is called). There is a Youtube video too.
I too faced a similar issue after replacing the screen and happens when you fiddle with the buttons when the phone is booting up.

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