Ok so I bought the wife a new G2 about a month ago from T-Mobile. The phone is great and we have both been loving it. Earlier this week the wife mentioned that she was unable to use her phone a couple times because she couldn't get the screen to come up. I messed around with it for a while and eventually it started acting up again. While using the phone, the screen would start to flicker (go between the expected image and a black screen), almost as if the backlight was going out (yes I know there is no backlight with OLED), and then the screen went blank. The screen was black for almost half an hour. I tried pulling the battery and rebooting, the screen never came on and the phone booted up completely. Since it was still useless I went ahead and pulled the battery again. I let it sit for 3-5 minutes and powered it back up. The screen came on, started to flicker a bit and then went black (this is at the HTC boot screen). Eventually the phone came back and now it hasn't exhibited the problem in a couple days. I have noticed that this doesn't seem to be a problem with the Z-hinge (seemed like a likely cause at first), as playing with the hinge doesn't seem to make it flicker or reduce the flicker when its happening. At this point I am 90% confident this is a hardware issue unrelated to the z-hinge. Perhaps a faulty LCD driver chip or a improperly seated ribbon cable on the motherboard side. Feel free to offer any other suggestions.
so... the phone has been rooted and has Cyangenmod installed. In order to get a warranty claim on this I will need to flash the phone back to the original TMO rom. This should be as simple as just flashing the stock .nbh file through the boot loader right? I need to do this before the screen permanently dies on me and I have an expensive paperweight. My other question is if anyone knows whether T-Mobile will send me a new phone replacement for this? I'm under the impression that when you do a warranty exchange you are sent a refurbished model that has been repaired. The phone is only 1 month old and I don't want a refurbished 6 month old phone to replace it, although I don't know if I really have many options.
Okay what method of prem root and s-off did you do? Because if u used the 1st method of prem rooting and s-off useing unforgivens way you need to hex edit to properly flash the PC10IMG.zip stock rom or u will get simi bricked phone. Am not familer with rage so I can't really explain that. As for gfree method you should be fine flashing the orginal stock rom but have more procedure to turn on S-on
Sent from my HTC Vision using XDA App
I used the gfree method described here http://forum.xda-developers.com/wiki/index.php?title=HTC_Vision#Rooting_the_G2 using the full method that does the radio S-OFF, Super-CID and simunlock.
Hopefully I can just do something like what they discuss here: http://www.addictivetips.com/mobile/how-to-unroot-t-mobile-g2-htc-desire-z-complete-guide/
Thanks
I advice following this
http://forum.xda-developers.com/showthread.php?t=835971
It worked for me. Well hope everything works out
Sent from my HTC Vision using XDA App
The backlight may very well be faulty. This is not an OLED screen. Its just a standard LCD display.
I would get it exchanged if I were you.
Sent from my T-Mobile G2 running Cyanogenmod.
Just got the new G2 in the mail, rooting it now. I was under the impression that the H2o had an amoled display and not a standard backlit lcd. Is this incorrect?
Sent from my HTC HD2 using XDA App
No the g2 has a normal lcd
Sent from my HTC Vision using XDA App
The G2 has an S-LCD. An better LCD screen developed by Sony.
HTC started to use S-LCD because samsung couldn't make enough AMOLED screens for HTC's Desire phones.
Related
display does not always work. The phone is not rooted. So I don't use set cpu or anything like that. The problem that I am having is when I turn the phone on (after it is shut down) it does not display the htc logo, then when it gets to the g2 it does not display that either. When the finishes turning on the screen is still black. I can press the digitizer where I know the unlock is and I can feel it vibrate then when I unlock it I can still feel it vibrate when it unlocks and it takes about 2 to get the screen on from this just pressing the on and off power button. Some1 please help. PLEASE HELP!!! Any Ideas?
Sent from my T-Mobile G2 using XDA Premium App
Sounds like a dead LCD unit. How/when did this start happening?
Dang so the lcd is not even turning on? Since your not rooted you should get a replacment phone
Sent from my HTC Vision using XDA Premium App
masroorkhan said:
I searched other forums and seems like I am not the only one with this problem. All they suggested was to take out the battery, mem card, sim and leave it for a while and then put everything back in, the display was working fine again. Unfortunately, it didn't work for me, not even restoring factory default, not to mention going through that painful "shooting in dark" process.
I am already aware that if all things fail, LCD has to be replaced. Other than that if anyone has any other suggestion(s), it'd be much appreciated. Otherwise thanks anyways
Click to expand...
Click to collapse
I am going through same problem. Haven't found a 'non-LCD replacement' solution yet. Maybe the above will make things work for you. There was one guy who said he turned on the phone without the mem card. So you can try this as well.
If you find anything else, please share.
Good luck.
I didn't think it was a dead lcd because after about 2 minutes of the phone already running the lcd will turn on again. and I saw your thread that said to take everything out I did try that and it did not help. any other ideas?
Does the screen flicker? If you open it up halfway and gently nudge the flex cable, does it do anything?
I juat tried and it does not flicker at all. Once the screen in on there are no problems, its getting the screen on that's hard. Its realy weird. And it started about a week ago and the phone is out of warenty.
Sent from my T-Mobile G2 using XDA Premium App
It doesn't sound like it should be a problem but I want to root it. And install a custom rom, and I am scrared to do that because when I boot into recovery I cant see the screen.
Sent from my T-Mobile G2 using XDA Premium App
How can it be out of warranty? G2 wasn't released until October 2010 and HTC provides a 1 year defect warranty. Here is the link. http://www.htc.com/www/support/warranty.html. I didn't look at anything outside the US though.
This is not a caused by physical damage so should be covered??
Also, Tmo, if that's who you're with might just send you a new one?
I'm assuming you don't have the Asurion 5.99 plan? That would cover it for $130 last resort.
Oh, also, Visa or Mastercard will sometimes take care of you if you used it to purchase the phone so check with them in a pinch.
Last night I pulled my Desire Z nam out of my pocket to find an all white screen. I pulled the battery and attempted to reboot. Upon reboot, all I got was a blank screen (the backlight comes on but nothing else) and it has remained like that since. As I didnt buy this through Bell or T-mobile, etc, I have no insurance or anything on it. Am I screwed?
cmccollough said:
Last night I pulled my Desire Z nam out of my pocket to find an all white screen. I pulled the battery and attempted to reboot. Upon reboot, all I got was a blank screen (the backlight comes on but nothing else) and it has remained like that since. As I didnt buy this through Bell or T-mobile, etc, I have no insurance or anything on it. Am I screwed?
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Click to collapse
I think your phone screen cracked... am not really sure but the best thing I guess is to find a repair shop
Sent from my HTC Desire Z/G2 Using XDA Premium App
You are screwed. I had the same problem on mine. Put the phone down for one second. Picked it back up and it was blank. Rebooting and taking out the battery does nothing. I had to go to the t-mobile store and get it replaced as it was still under warranty. I am sorry for ur loss
Sent from my T-Mobile G2 using XDA App
Try bootloader? Take out battery, put it back, then holding volume down, press the power button.
If you can't even get into bootloader, I think you are pretty screwed.
cmccollough said:
Last night I pulled my Desire Z nam out of my pocket to find an all white screen. I pulled the battery and attempted to reboot. Upon reboot, all I got was a blank screen (the backlight comes on but nothing else) and it has remained like that since. As I didnt buy this through Bell or T-mobile, etc, I have no insurance or anything on it. Am I screwed?
Click to expand...
Click to collapse
I've having a similar situation with a black screen when I open it. Seems like the LCD is losing connection. Does sliding it open/closed have any effect?
Bootloader can be accessed but the screen is blank so its useless. Haptic feedback and backlight would still be there. But nothing else
Sent from my T-Mobile G2 using XDA App
Btw I'm in the same boat. bought a bell mobility phone on ebay unlocked @ full price, and using on at&t. Let us know if moving the lcd to a certain position helps.
something similar to this happened to my G2 and i JUST got off the phone with t-mobile about it. The guy said it was a known issue for the G2. Unfortunately, since you don't have insurance, your might have to spend some money... BUT i would first call HTC. I bought a G1 back in August 2009 of craigslist. after a year or so i was using it and the touch screen just stopped working when I opened my text messages. I called HTC and, for free, they took it in and sent me a new one. I believe its because the devices themselves have manufacturer warranty. So definately call them before you give up!
The screen stays blank no matter the position of it (opened or closed). I'll try giving htc a call but since its unlocked I think the warranty is most likely void. thanks for the replies
Hi All
For the last couple of months my desire has had an intermittent problem with the touch screen. All of a sudden it decides you're trying to pull down the "notifications" screen when you're just touching the touch screen, sometimes it also decides you're trying to hold and drag when you're just tapping the screen, sometimes it simply stops responding. These problems are usually solved by tapping the top button and putting the phone on standby then tapping it again and waking it up - although sometimes it then won't let you drag down the screen unlock until you repeat the on/off standby procedure a couple of times. The problem varies on connecting my phone to my computer.
Given that in between these instances the touch screen works as normal I'm guessing it shouldn't be a hardware issue, but the intervals between these problems appear to be getting shorter (either that or I'm just getting more annoyed by it recently). I've had a quick search of the forums and haven't immediately found anyone having this precise problem. Is it likely a question of trying factory reset and if that fails sending it for repair?
Thanks in advance
Similar issues. Don't think this is hardware.
Sent from my HTC Vision using xda premium
Gotta know more about the phone first. Is there a custom rom? Have you tried flashing to stock?
Dukenukemx said:
Gotta know more about the phone first. Is there a custom rom? Have you tried flashing to stock?
Click to expand...
Click to collapse
I'm having same problem, mine started couple weeks after I installed cm7.2, I tried another rom, no luck
Its definitely not software. I've tried froyo, gb stock with s-on and no root. I've been on ics roms cm7 roms but this problem occurs on all. I'm giving mine for service today.
Sent from my HTC Vision using xda premium
Well since the OP didn't respond here's my suggestions. If you think it's software then just flash to a stock rom. You should find a number of them lying around the forums, and instructions on how to flash. This will mean your phone is unrooted and will need to be rooted, as well as taking care of installing a recovery and etc. This should correct anything wrong with the software.
Otherwise you busted the digitizer, which is actually very cheap to buy on Ebay. You will have to take the phone apart which can be time consuming.
strawmetal said:
Its definitely not software. I've tried froyo, gb stock with s-on and no root. I've been on ics roms cm7 roms but this problem occurs on all. I'm giving mine for service today.
Sent from my HTC Vision using xda premium
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Click to collapse
Hello,
Any luck with the Tocuh Input, is your phone back from service? I am also facing the same issue....
I had this problem on my G2 a while back. It was a hardware problem so I ordered a new touchscreen and replaced it myself.
Sent from my Nexus 7 using xda app-developers app
htc desire z touchscreen details
Whiskey_Tango said:
I had this problem on my G2 a while back. It was a hardware problem so I ordered a new touchscreen and replaced it myself.
Sent from my Nexus 7 using xda app-developers app
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Click to collapse
Hello Whiskey_Tango / Others,
Can you please let me know the details of the touchscreen component that you ordered for your G2? My HTC desire Z touch screen has also gone bad (unresponsive at multiple points) and I feel that changing the hardwre should do the trick.
If possible, let me know the touchscreen specs (model / part number) as well as any online website from where I can order it !
Many Thanks !!
From eBay search for HTC g2 digitizer
Be careful to get the one for the vision not for the magic
should be about $20
Sent from my Nexus 7 using xda premium
demkantor said:
From eBay search for HTC g2 digitizer
Be careful to get the one for the vision not for the magic
should be about $20
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
Thanks for the quick response. Before coming here, I had a mobile service shop take a look at my handset and he had mentioned that for HTC desire z, the "touch screen" comes with the "display" attached to it. Did he meant the digitizer only or (digitzer + LCD screen) or he was simply trying to rip me off ?
I am very sure that there is nothing wrong with the display on my handset, its only the touch functionality that is not working properly.
Which one of the following do I need to search on EBay?
gultek.eu/htc-spare-parts/digitizer-touchpad/desire-z.html
or gultek.eu/genuine-parts/lcd-modules/htc/desire-z-hd3.html
or both?
Thanks again in advance !!
You need just the digitizer, if you're doing it yourself it takes about an hour if you've never done it before, don't buy the lcd if you don't see a flaw in it.
Some people sell the whole front chasis with lcd, digitizer, front bezel all connected for ease of replacement. May be easier but you will only shave of 30min tops and spend 3x as much
Sent from my HTC Vision using Tapatalk 2
yeah this happens to my G2 a lot. I got my phone fixed a while back (2-3 months ago) becuase the colors on my screen were screwed up and the ear piece was broken. i took it in and he replaced a couple of cables. it worked fine but now sometimes the screen is just having a straight up seizure. it flips through pages so fast and it goes from page 1-2 and back and forth and then the virtual keyboard presses multiple keys and just its crazy. i feel like the guy that fixed my phone didnt plug in a cable all the way. but yeah thats my problem. i dropped my phone the other day and ever since my phone hasn't gone into a seizure lol
Hi, did you solve your problem? I have the same with my desire Z. It click alone in several place on my screen.
And I ask me if the problem don't come from the lcd digitizer control instead of the touch screen digitizer
strawmetal said:
Its definitely not software. I've tried froyo, gb stock with s-on and no root. I've been on ics roms cm7 roms but this problem occurs on all. I'm giving mine for service today.
Sent from my HTC Vision using xda premium
Click to expand...
Click to collapse
Hi, did u fixed your phone? can you tell me what was the problem.. even my phone is acting crazy.. wil that be fixed if i change the screen digitizer?
ahmedrzvi said:
Hi, did u fixed your phone? can you tell me what was the problem.. even my phone is acting crazy.. wil that be fixed if i change the screen digitizer?
Click to expand...
Click to collapse
Yes replacing the digitizer did fix my problem. And a year later the replaced digitizer started giving problems. So I ordered 2 extra digitizers off ebay. Both of them turned out to be duds. Surprisingly the second digitizer(which I replaced a year ago) fixed itself.
I think Im having the same problem,
bottom part of screen (including the home, menu, back, search buttons) aren't functioning half the time,
is there any service manual, or link to information as to what I need to tear apart on my DZ?
should this be enough? EBAYLINK
what do I need to replace the digitizer?
Okay, I haven't actually used this phone in ages, over a year, but a friend of mine is long-suffering with a BlackBerry and I feel obliged to end her suffering. There are two problems:
1) She wants Sense 4.0.
2) The digitiser is smashed and non-responsive. (A replacement has been ordered)
Now, I am sure that there is a few Sense 4.0 ROMs lying around here due to the fact that HTC released the Desire C, which has the same resolution screen.
So, I started to go through the process of unlocking bootloader, flashing recovery etc and fell at the first hurdle. When I had this, I didn't even look at the developer options, which seems to have screwed me over, because USB bugging is disabled.
So, basically, does anybody know how to enable USB debugging without actually using the screen? Or anything that could enable me to get all of this done now, so I can just replace the screen when I get it and give her the phone?
Nope. Gotta have the screen! And there's not a single sense 4 rom and there never will be. Desire C is armv7 the WFS is only armv6; it's not a case of screen size, but processor compatibility
Sent from my Wildfire S A510e using xda app-developers app
Ouch.
Indeed, you're going to have to fix the screen first.
I faced a similar problem some time ago. Unfortunately, the digitizer has to be fixed first
Alrighty then. I've seen many reviews saying the far right side of the screen often does not respond on replacement, is this true? I was looking at one on Amazon, although the seller is "HTC" I don't buy that for a second.
Sent from my HTC One S using xda premium
I'm very curious on how you proceed on this. I got the same phone and exchanged a non-responsive (shattered) digitizer to a new one which also seems like it is totally unresponsive.
I have read that you need to go into diag mode and calibrate the phone after exchanging digitizer, which seems impossible without USB debugging is set to ON. Unfortunately mine is set to OFF and I'm stuck with an unresponsive digitizer...
Did you get it to work?
Hi,
after I rooted my phone, I realize that touch screen doesnt work. Before this problem I get custom rom 2.3.3 and when I wanted to root it problem appeared. I've tested other roms but this doesn't repair touch screen. In tutorial of rooting Desire Z i had to put file DZ_PC10IMG and start bootloader. At half of the installation my phone turn off, and I dont know why. I tried second time and then no problems appeared. When i turned on my phone touch sreen was dead. I found solutions on forums only for xperia or samsung phones. Is it possible that rooting can broke hardware? Oh ,I also installed CWM Touch Recovery but there my touch screen doesn't work too. I don't have warranty so I want to try repair my fone in home.
Can u help me reapair that?
PS Sorry for my english.
The act of rooting in itself cannot damage your touch screen but i will say its odd for this to happen at the same time you rooted.
You can try a full return to stock if you want to rule out software/firmware problems but it is likely hardware
A new digitizer will be about 20$ and is the most likely issue, could also be main flex cable, about 25$ but less likely to what you describe
Either way the hardware fix takes 30-1hour if you quick but if youve never done this sort of thing expect a couple hours to be safe. It is rather easy and plenty of tutorials
Best of luck to you
Sent from my SGH-T699 using XDA Premium 4 mobile app
i think something went happened with Your hardware..
HI, Today I've changed digitizer and it doesn't help at all. I think it's problem with software. Do you have any idea what can I do?
You can follow a guide to return to stock, all firmware/software that was changed in rooting process would be changed back, this will either confirm or rule out any software/firmware issues
Sent from my Nexus 4 using XDA Premium 4 mobile app