[Q] Screen problems after flash - G2 Q&A, Help & Troubleshooting

Hey all. My G2 was hard bricked to a point where it didn't even turn on, but with aftabalam8c2's help I could get it to a state where I could flash the phone. I flashed it with a 10b tot image, but after flashing I instantly noticed that the screen has many problems: sometimes it doesn't respond and there are random ghost touches all the time, even when I don't touch the screen. I double checked all connections, made a factory reset, flashed a 20h kdz image and updated touch screen software, but nothing helped.
A week before the brick, I had changed the screen, but everything was working perfectly until the bricking.
I am quite desperate, because the phone is completely unusable right now and I don't know what else to do.
You can see a video of the screen problems here.
Update: I noticed that when I put pressure on a specific point on the left bottom corner of the screen, the screen works normally. Might this hint that the screen is faulty?

Bump. Any help or tips are welcome.

I had ghost touches right after I bought my G2. I tried everything, change rom, kernel, firmware, flash via kdz, everything. I bricked my phone trying to fix my problem and I send it to LG (warranty) . They replace my motherboard and send phone to me. After I turn on g2 problem was back after 20 mins, so I send it again and then they replace my all screen too.
Since then (3 months ago) everything is perfect so I guess you should fix your screen/digitizer.

Thank you for the tip. I was already thinking it might be the screen, although it worked perfectly before I bricked the phone. Sadly I don't have a replacement screen at hand, but I sent a message to the screen seller, asking for a replacement. Now I just have to wait and see.
Interesting is that my phone was off for a few days and now, after turning it back on, the ghosting is almost gone, but some spots on the screen are unresponsive or oversensitive.
Edit: I made a touch test and found out that there are two large dead zones on the screen. I guess the problem really is in the screen then.

Funny thing is this that I haven't had any dead zone just ghost touches
Sent from my LG-D802 using XDA Free mobile app

Related

Screen no longer repsonds

Hi, Sat night without me adding or removing anything from my Touch Dual, the screen no longer responds to any touches via hands or stylus. I have hard reset the device numerous times and alsoflashed the original rom back onto the device but now it gets stuck at the align screen.
Any ideas?
Sorry to tell you this, but you'll need to have it repaired at the shop. Mine had the same symptoms and they had to replace something completely before it got back to 100% working condition.

HELP! Touch screen no longer working!

This morning, my touch screen suddenly stopped working. Hardware keys are still working but device is not responding when the screen is touched. Already tried a hard reset but no success, now I am stuck at the align display screen. Also can no longer get to the bootmenu, so can't reflash my device! Any suggestions on what's wrong or how this can be fixed? Thanks for any help!!!!
I'm curious
Didn't you see any spots (like oil spots on the water) to the touch screen ?
I had the same problem .I replaced the touch screen and the phone is working again .
No, nothing, was working fine at night, when i woke up just randomly stopped working. The display is not cracked or anything, so wondering whether a screen replacement will do the trick? ALso strange that I can no longer get to the bootscreen to enter HardSPL...
Had the same problem, the issue (with mine anyhow) was the digitizer, which is an overlay that sits on top of the actual LCD screen to give it touch capability....
good post here
http://forum.xda-developers.com/showthread.php?t=392301&highlight=digitizer
I had a similar problem,
To get past the Align screen I had to apply pressure to the top of the screen opposite side of front facing camera - then use the screen as normal
I reflashed the original rom (manually getting to bootloader) - it worked for a bit but ended up sending is back to 02 for repair.
All they did apparently, was to reflash the ROM again and its been working since.
Had the same problem a couple of times a while ago, when i was trying out WM6.5.
All buttons worked but not the touch screen. Never really found out exactly what the problem was, but the first time I managed to get it working again by resetting the alignment:
While gps button pressed (under green button), press center D-pad button this will bring you to alignment screen.
The other time the "alignment trick" didn't work, but i got it working again, after flashing the original ROM couple of times. (And doing hard reset between each time)
I think I used this ROM
You say you can't get to the boot menu, do you run hard-SPL?
most likely its an hardware issue - had this one too, of course out of nowhere!
flash with original rom and if you cannot align screen (as the hardware seems to be broken) send it in for repair. it will be under guarantee, if screen isnt broken.
I had similar problem, I passed the alignment but i had a huge offset in the touch.
I replaced the touch screen and it solved the problem.
You can find it in ebay for 1 US $.
nogge69 said:
You say you can't get to the boot menu, do you run hard-SPL?
Click to expand...
Click to collapse
Thanks for all the help guys!!! I do run hard-SPL and have flashed many ROMS - just don't know why it won't enter the bootscreen anymore when I reset the device and press the camera button. Did manage to upload original ROM again by using activesync, now trying to restore original hard-SPL so I can send off the device for repair.
Hi, i had also the same problem, i find a threat in the internet... try to push the upper corners on the device with your fingers and then tab on the screen to see if the problem solved.
I had the same issue.
Its more than likely your digitizer. I tried flashing 100 different roms but always stuck at the align screen stage.
I actually have the barely used digitizer if anyone wants it (for a few dollars of course hehe) My mainboard died a couple of weeks after i installed the digitizer.
needless to say i moved away from the ****ty build quality of HTC to the MUCH better build quality of the iPhone.

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...

Help! LG V20 extreme lag after kernel crash

Hello,
Yesterday my rooted LG v20 h990ds got a kernel crash (green screen). I pulled the battery and after that I noticed no difference.
Today I woke up and noticed that the phone was really slow. Somehow the touchscreen was not always responsive so I had to lock and unlock it again.
I couldn't figure out what it was and I thought that maybe it was caused by the root. So I did a factory reset and went back to stock (LGUP). Unfortunately the problem is still there. Does anybody know what it is? Could it be a hardware defective?
Thanks in advance!
edit:
After a few tests it seems to be the digitizer. I've installed an app to test the digitizer.
Sometimes the screen sees a short touch as a long touch. That's why it opens extra options when I try to type a letter.
I've opened up the phone to see if there was any moisture damage visible, fortunately that was not the case.
Is it still possible that this is a software problem? Or do I have to buy a new screen?
edit 2:
The phone is functioning normally again. I disconnected the screen cable and plugged it back in again. Probably it was a loose contact.
This thread can be closed

Touch stop working after turning off and on the screen.

I've been using the PH-1 for a year and a half and its great, but a couple days ago i would unlock the phone via fingerprint (as ussual), it would unlock but the touch wont work, so i factory reset the phone and still the same, remove the case and the screen was loose (almost complete), but the cable was well connected on both sides so i got the screen glued, but still the same.
Im using Android Pie (from day 1) with March update (updated like a week ago), in order to use the phone beyond what Google assistant can do i have to reboot the phone (using power and volume buttons) to get the touch to work again and dont let the screen go off. Sometimes after rebooting the touch works even if i turn the screen off and on, but i think its just luck.
You guys think it might be a software issue? or hardware issue? because i don't live in the US or CA, so i would have to wait a couple weeks for the screen to get here and i would'nt be able to return it in case its not a screen malfunction.
I really don't wanna change my phone, i love the PH-1.
EDIT: i just replaced the screen with a new one from fixez.com and the problem persists, i think april's update broke something. is there something i can do to check the software? Pls help.
I rooted my phone and almost the same thing happens. I turn off the screen and turn it back on and the touch is unresponsive. Howver, ONLY the apps left on screen are unresponsive. I can still pull down from status bar its weird.
Update 1: I saw u mention fingerprinting. I removed mine and somehow it seems to have stopped. I'll use it for about another day or 2.
Update2: Well it doesn't. If my screen times out with an app open. The app is unresponsive upon waking.

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