Phone works but backlight of the screen doesn't - G2 Q&A, Help & Troubleshooting

Hello,
As you can see my issue is related to the screen... backlight always worked until some days ago where it failed somehow.
It started to fail when I flashed Stock Kitkat with the recovery but I don't think that it could be related...
My question is simple, did anyone faced this issue and resolved it?
My guess is that it has to be repaired but if there is a small chance it can be repaired from my side without opening it I'm willing to try it, otherwise it goes to reparation
[EDIT]
Apart from this issue the phone is working just fine, I mean it boots correctly, can enter in download/factory reset mode if I want too.
The only thing is if I adjust the brightness on the phone from Android nothing change, the phone is still dark and can hardly see what's in the screen.
[/EDIT]
Thanks in advance!

Related

[Fixed] Screen white with multicolored lines

Everything works fine except that the screen is white with jumbled colored lines. I had MyMobiler running and I could see the phone perfectly from it and use it. A soft/hard reset will not work and I tried flashing back to button rom with no luck.
This happened to me before but I flashed button rom and everything went back to normal. Then it happened again 2 weeks later and this time I decided to try stuff out and discovered that putting backlight to nothing then putting it back on fixed the problem. But this time, nothing seems to work.
Any ideas? Should I try the method posted in this post? http://forum.xda-developers.com/showthread.php?t=424553
Aye, I posted that, and it is the fix of choice around here for that problem. Do it and all should be fine again.
Ok I will try that in the morning but I didnt think it was hardware related since I managed to fix it by flashing the first time.
Well, it seems to be a tempormental problem. Some people can "slam" their keyboard shut and it will fix it for good, while others have to take their phone apart to get it back to normal.
Thank god! I successfully fixed my display by flashing the original cingular 8125 rom !!!!
Now I have regrets about slamming the keyboard/'gently' hitting the display poor phone.
Ok I spoke too soon.. after the flash was completed, it went back to the messy display.. Well I know now that it is not hardware related.
Update: I had my phone plugged to the PC with USB and had backlight constantly on.. 3 hours later, the screen came back to normal... Hmm?
I have found a permanent solution for this. I have noticed this problem occurs when my battery is very low and my phone turns off right when I switch the phone on.
So to solve this, if powering on phone didnt restore the screen, just press the reset button until the screen fixes itself. It has worked everytime my phone had those white and colored lines.

HD2 Touch Screen Not Responding

Hi Guys i hope somebody who knows about capacitive touch screens can help me! I have taken my HD2 apart to fix a smashed camera lense. On removing the back cover i used a small screwdriver to prise off the back case and unclip it all round. It came off with no problem, i fixed the camera and put it back together. When i turned the device back on the touch screen isn't responding to my finger on any screen. Like i turned the touch screen off! The hard buttons still wok but nothing from the screen. Nothing looks damaged (I.e the glass isn't smashed). I seem to think i might have damaged something when prising the cover off with the screwdriver. Please, any suggestions would be really helpful!!!
Can anybody out there help with this? I am currently without a phone :-(
I have exactly the same problem, but it happened from nowhere. I didnot unscrew anything. Please Help
Check the flex cable.. this part are very delicate.
is this :
http://img.diytrade.com/cdimg/92507...creen_Full_LCD_for_HTC_Touch_HD2_HD_2_LEO.jpg
same problem
ive got the same problem, mine just stopped working, i performed a soft and hard reset, removed the battery still nothing. it worked for a moment but once locked it stopped working again, only the hard buttons.
same problem but it works on and off. basically the screen will respond until the phone is put into hibernate. the after that id have to push the phone button and end button back and forth until it responds
Same Issue independant of ROM
Same issue here.
Funny thing is it started a week or two ago randomly out of the blue.
Same scenario:
lock the phone can't get touchscreen to respond for unlock
Judging by these posts everyone started seeing this about the same time, maybe it's a software issue or background app .
Help!
I have same problem. It can work for a couple of hours or in 1-2 days then just stop responding, almost every time when in hibernate. Lets just hope it's not hardware failure.
This started happening to me this morning. Out of 50 tries, managed to unlock the phone three times only. This happened out of the blue, right after i removed my phone from the charger.
Have soft reset, hard reset, reflashed ROM, but the issue still remains.
I really really hope this is not a hardware issue.
Does anyone out there know how to solve this? My phone is virtually unusable right now...
Same problem here, I've been testing for about 2,5 months now and today I've sent mine back to HTC . I think it's a hardware problem, tried everything from hard resetting to reflashing. When I press the HTC logo and keep it pressed the screen does respond again. Conclusion: hardware problem.
dio62000 said:
Same problem here, I've been testing for about 2,5 months now and today I've sent mine back to HTC . I think it's a hardware problem, tried everything from hard resetting to reflashing. When I press the HTC logo and keep it pressed the screen does respond again. Conclusion: hardware problem.
Click to expand...
Click to collapse
You're probably right.
I've also tried everything. But kind of strange that if I lock when not on home tab it seems to work. And the screen, almost always, reacts as it should as long as I just dont' lock it.
I just started to get this issue. touch screen works fine until it hibernates. reflashed, still happens. found this in my search:
htcphones.net/htc-hd2-problems-with-touchscreen/
just got off the phone with tmo. they are sending me a new one.
Yeah, it happened to me as well. I opened a new thread like a month ago explaining the problem: http://forum.xda-developers.com/showthread.php?t=710282&styleid=15
and I contributed in another one concerning the same issue here: http://forum.xda-developers.com/showthread.php?t=708530
Summing all up, it ain't caused by a software or a ROM of some kind (at least in my case) because soft and hard resets didn't solve it nor did the flash of a stock ROM. The most probable cause is a digitizer (touchscreen) defect that appears randomly and totally out of the blue. The only thing to do in my opinion is to send the phone in for repair, which I did. It came back with a check mark on "calibrated screen" checkbox. As of now phone's working fine and I hope they solved it even though I read of other people who have had their leo's screens completely replaced..
A curious side note: htc care reset to zero my phone's call duration timers..
I'm not sure if it's the screen. In my case I think it's the connector from the screen to the motherboard, because pressing the housing seems to help.
But let's see if HTC is able to repair it, I hope they are, because the problem is so random they might not even see it
After losing functionality on my touch screen for a week, finally decided to send it in. Took the trouble to revert my HSPL to original and Stock Rom.
Repair should take about a week. Now I'm stuck with an ancient Nokia 6230i for this week. I feel so lost without my ppc. Have had one for as long as I can remember.
Hopefully the phone comes back okay...
I've had so much problem with the screen not responding so I did all backup then reflashed, hard reset to put the device back to stock. Did this during the weekend, I even fired up my old iphone 3g to have as backup phone.
All set today to go to the store and have it repared under warranty.
But since Sunday evening it works perfect. I've been testing it a lot and the screen has not stop responding even once.
This might be just temporarily but does anyone else experienced something like this?
Mine sometimes worked well for hours... days... but eventually the problem came back.
Mine died on me when I was actually out of the country (stuck in Vietnam without a phone). It would work for 5 minutes, then stop for hours. I would have to switch my phone on and off for a couple hundred times before it worked for another 5 minutes...
Got so tired of it that i sent back my HD2 for warranty repair. Expect it to be back tomorrow (or Friday at the latest). Hope there's no further problems with it.
I hate to say it, but the HD2 is known for its highly defective touchscreen. Even when it's working, a lot of people experience strange and bothering events, such as the touchscreen "touching" itself, a very high/very low screen sensitivity all of a sudden, the tilting of the screen to one of the four corners of the device and so on and so forth.
With a device so expensive one would expect it to work flawlessly. Seems to me that HTC doesn't think the way we do...

[Q] Touch screen issue

Hi,
In last week I got very strange behavior on my G2.
It started with knock on didn't worked as it should be and stuck few times and continued with strange notification bar behavior.
When I am trying to pull the notification bar down it sometimes stops at the middle of the screen and get back up, it takes few tries but at the end it is working.
I thought it is software problem and tried to do factory reset and flashed different roms but those problems are still exist.
I don't have any screen protector so that's option out too.
Any idea what the problem can be? I don't have any warranty and I am curious if anyone got this before and maybe there is a solution before I will go and get screen replacement.
Thanks for any help you can give.

Screen stopped working with strange moments

Hi,
After Xmas I made factory reset with TWRP and I made an upgrade to CM13.(6.0)
It was working fine.
When I was trying to make next daily update, after reboot, screen became black and nothing shown up.
I was trying a lot of things since that moment.
When I was going back from service point (I really want to sort it out) when they told me it is probably LCD broken (i have broken glass, but 1 year ago, so I do not believe it can be screen),
when I take phone out I spotted that keys are highlighted so I swiped and it locked out and shown screen! it was working perferctly fine,
so I decided that it is best moment to flash newest CM to solve issues, but after reboot screen was black again.
I can enter download mode so it is visible in Odin, but screen is black in every mode.
There is only quick flash on screen when turning on and also really short moment of Samsung Galaxy logo which becoming dark quite quickly.
I flashed stock rom(5.0), but nothing changed, despite of that I know phone is turning on somehow because I hear music on turning on...
Can someone help?
I really doubt that it can be hardware issue.
Can it be something with BL ? How can I solve it...?

My screen just dies, please help!

Hello everyone. I just bought the OnePlus 8 Pro, set it up, used it a little and then opened the camera, and changed to selfie mode. Suddenly the screen turned green and turned off. Since then I cannot boot my phone and i see green flashes on my screen and nothing works. I can still hear the phone works (Lock screen noises and vibrations) but still can't see anything apart from green flashes every 5 seconds. I've tried to hard reset the phone a few times, but no luck, screen still flashes green.
Please tell me if there is something i can do to fix the issue, or the screen just died.
Why would you want to try and fix the issue? It sounds like a hardware failure and you should return your device. Sure it's a ****ty situation but these things happen.
patensas said:
Why would you want to try and fix the issue? It sounds like a hardware failure and you should return your device. Sure it's a ****ty situation but these things happen.
Click to expand...
Click to collapse
in my country its not that easy .... you need to send it few weeks to check the prob
and thats my only phone i use i cant send it and just bought it
maybe other opinion guys plz?
The only way to solve this is to RMA sadly. Definitely a hardware issue and needs to be replaced (if within the appropriate time) or repaired.
RMA. 100%
ok guys first of all i gave the phone to the company for check thx for your reply

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