Develop Bugs

[Q] LCD Screen Problems

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.

Blank screen, help!

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?
Click to expand...
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

Bad touchscreen

Ever since I purchased my evo I have had strange touchscreen issues. Ie.. it will start pressing buttons or long press all by itself. At first I thought it was the rom I was running but later found out that every rom I have ran does it. Now I'm sure everyone is going to tell me to just replace the phone but I don't really have the money to do that right now. Just wanted to see if there has been any other evo owners that have run into this and if they had any suggestions. Thanks.
Sent from my PC36100 using XDA Premium App

kbizzle said:
Ever since I purchased my evo I have had strange touchscreen issues. Ie.. it will start pressing buttons or long press all by itself. At first I thought it was the rom I was running but later found out that every rom I have ran does it. Now I'm sure everyone is going to tell me to just replace the phone but I don't really have the money to do that right now. Just wanted to see if there has been any other evo owners that have run into this and if they had any suggestions. Thanks.
Sent from my PC36100 using XDA Premium App
Click to expand...
Click to collapse
I had a similar problem with my HTC HD2 back in the day and it turned out to be a hardware problem. I took it back to the store where they confirmed it and replaced my device right there. If you rooted your phone and have a custom rom installed on it right now....unroot it and put the stock rom back on it and take it back to the store where they'll be able to give you a brand new one for free! Things like this aren't your fault and so they shouldn't charge you at all!

As mentioned, Sprint should replace the phone free of charge - especially if you have insurance. Be sure to take it to a true Sprint store and not just a store that sells Sprint stuff. Without insurance, it may cost you $35, more, or absolutely nothing.
Just be sure to unroot first, as Sprint may void your warranty or refuse to replace it if they see that it's rooted (and since the issue is with the screen, they will). If you used unrevoked to root, remember to flash the s-on tool in recovery before running the RUU. Also double check that you're s-on before taking it in.
Good luck!

Thanks for the responses. I do have insurance but the quirk is that I purchased the phone second hand from an acquaintance. The screen issue happened so minimally that it didn't really bother me until late. Now its happening more often. I guess I'm gonna have to suck it up, lose it in the bathroom at my local pub and fork out the deposit for replacement. Thanks again.
Sent from my PC36100 using XDA Premium App

My stepmom bought her BB Curve on ebay. She has insurance, it went funky on her & they replaced it for free.
She's a customer service rep's worst nightmare, though.

I dont think it matters where you got your phone if you have TEP....
I was once giving a phone by my nephew they replaced that phone 3 times for me! I love sprint!

Phone reboots

Hey folks
These aren't really random reboots, and they don't seem to be caused by an app. They're more like 'when I touch it the wrong way' reboots. If I set the phone down, or pick it up, sometimes it will reboot.
I checked the battery contacts so that's not it. I'm thinking its either a problem with some internal contacts, or something with the accelerometer.
Has anyone experienced something similar? I just passed my 1 year manufacturer warranty period, unfortunately.
Thanks
Sent from my HTC Vision using XDA App

Hmm sounds like a hardware prob. It shouldn't be the accelerometer. Does it reboot when u are using it?

It rarely reboots when I'm using it. It will usually reboot when I pick it up or set it down. If I drop it on my bed from 2 feet up for example, it may reboot. What's weird is that its not a guarantee. In fact I've gone days without a reboot, and sometimes I'll get numerous reboots in a day.
Sent from my HTC Vision using XDA App

Several people have noted there can be a problem with the battery not fitting snugly into the chassis of the phone. When you drop it, the contacts on the battery can move slightly off the contacts on the phone and it can reboot. Some people just shim the battery down a little.

> Has anyone experienced something similar? I just passed my 1 year manufacturer warranty period, unfortunately.
I do not know how far you are out of warranty.
I was in the same situation 2 weeks ago. I was on my last day of warranty (so I thought), when I got tired of the constant reboots. I went to my local TMO store and they claimed that I was out of warranty by one day. Fortunately they put me on the phone with customer service. There it was confirmed that my warranty was out since 1 day. The person was very nice and said: "Let me see what we can do for you". She came back after one minute and offered me a waiver that would have allowed an immediate full upgrade. I told her that TMO does not really have any upgrade that I was interested in (I wanted a keyboard and stock Android), so she went back to her supervisor and came back with the offer that they would assume that my warranty would not run out on that day at 12am, but at midnight and that they would replace the phone under warranty. I have the phone now for a week AND no more reboots. TMO rocks !!
PS: I am with TMO for > 7 years

Yea tmo had some awesome customer service from my experience! I really hope they don't get bought out. Kinda inevitable though since the owners don't want it...boo!

Awesome experience! I work in Customer Service, so I know that I could theoretically get it replaced and whose arm I have to twist to get it. But I don't have the time to spend doing so. My phone hasn't rebooted in a few days now. I did a full wipe before I flashed my next nightly. I have my fingers crossed that it stays that way.
Sent from my HTC Vision using XDA App

I feel silly even mentioning this, because I thought I might be the only one dumb enough to suffer from it, but I will go ahead and mention it anyhow. I was hating the reboots with my G2, and found somewhere that I needed to actually make sure the SD basket was locked in place. I had replaced my SD card, and didn't realize it slides into a locked position. Have never had a reboot since I clicked it in place. That was months ago. Hope it is something that simple for you. Yes... I know I was a dufus for not realizing how the SD basket worked.

I had the exact same problem and I could not figure it out. I finally did a complete wipe and reinstalled problem stopped. I also converted my partitions to ext4 but not sure if that would make a difference.

Could it be the radio?
I did a full wipe prior to flashing CM #231. I used titanium backup to restore my apps. Now the reboots were gone!
But my GPS problems returned. I flashed the next best radio 26.08.04.30. Last time I initially switched radios to fix my gps problem. GPS is still broke, and now I am rebooting again.
Sent from my HTC Vision using XDA App

My painfully embarassing NOOB mistake. and an awesome discovery

I would by no means consider myself a NOOB, as no one ever wants to be a newb. Although i have bricked and burned up a few devices. I have been a member of XDA for some quite some time. I started with an HTC HD2, i was dual booting windows phone 7 and gingerbread. UltimateDroid, to this day is and was still my favorite ROM of all time. Still wonder what happened to that guy. I ended up burning up that phone so much so that it would lock up and i would have to put it in the freezer for 10 minutes before putting the battery back in and turning it on. From there i graduated to an HTC sensation. Phone was awesome, i was running an early version of the InsertCoin rom, until i was on skype and dropped the phone. For some reason upon dropping the phone, it never turned on again. I then had a samsung galaxy captivate and was dissatisfied to find out i could only get 2g on tmobile based on the antenna in the phone not being able to recieve tmo's 3g signal. From there i went on to an LG G2x, what a great phone. I was using the Tsugi Rom with the oyusame overclocked, stock voltage kernel. I got kind of sick of the phone because i had flashed every new rom that came out and it just started to get redundant for me, that was when i got my Galaxy S2 Hercules. I love this phone but alas, in my continued need to root and flash the crap out of my phone with all XDA's latest and greatest goodies, i flashed a rom that didnt boot. (This was most certainly my fault for NOT THOUROUGHLY READING THE INSTRUCTIONS) so in discovering this with only a few minutes to spare before work, i opened up odin before work and grabbed what i thought was clockwork recovery and flashed it. This was not clockwork recovery and upon and flashing i recieved what every modder on here is terrifed of. QHSUSB_DLOAD followed by that god awful windows device driver error noise. Pissed off driving to work with no phone, i immediately ordered a USB jig off amazon for $3.50 cents plus an addition $35.00 to overnight ship it to my house. So impulsive to fix my phone, i even stopped at radio shack and bought myself a pack of 100k ohm resistors to try and make the part myself. Several broken usb cables, and my kitchen table looking like a tweekers wet dream later i had no resolution. I woke up the next morning tracking my usb jig every half hour and was very excited to recieve it, goign as far as to tell my wife that i would no longer be going to get her coffee or visiting her parents as I would be pre-occupied with my phone for a while. Murphy's law however saw otherwise as this did not fix my issue either. I of course knew that if i called T-Mo the insurance would not cover this. So i started calling local cellphone repair shops. After about the fifth place i called, i realized that most of those people are lightyears behind whats happening on here and found that when i tried to talk tech they would sit there and scratch their heads. Out of options, I called the 800 number for samsung on the label underneath the battery. I very openly and honestly explained to the lady that i had rooted my phone, installed a custom recovery and was flashing custom roms. I then explained something went terribly wrong and the phone does not respond at all. I also explained the QHSUSB_DLOAD problem. I believe this explanation went a little beyond they types of calls she was used to recieving. She did however explain that Samsung provides complimentry re-flashes of bricked phones as long as there is no hardware damage done to the device. She then e-mailed me a ups label with shipping paid , and my phone is in the process of being repaired. I did buy yet another HTC sensation to get me by for the 2 business day shipping to samsung, the 7 business day evaluation and repair process, and another 2 days for me to get it back. I hope this can help anyone who has made the same mistake, and moreso i hope this can show others how rushing, being careless, and not reading the instructions can come with HEAVY consequences. Although all should work for me just fine, i still had to spend $150 on a used sensation with a cracked screen, and the nearly 2 weeks of downtime i am without my GS2.
___________________________________________________________________________________________________________________
Devices: HTC HD2(DEAD), HTC - Sensation(DEAD) Samsung Captivate(SOLD) LG G2X(SOLD) Galaxy S2 T989 (OUT FOR REPAIR) HTC Sensation (Were keeping that stock at least until i get the glass replaced and my GS2 back) LG G2X (Waiting to warranty my fiance's sensation to get it back)

Sent from my SGH-T989 using Tapatalk 2

LuniZ916 said:
I would by no means consider myself a NOOB, as no one ever wants to be a newb. Although i have bricked and burned up a few devices. I have been a member of XDA for some quite some time. I started with an HTC HD2, i was dual booting windows phone 7 and gingerbread. UltimateDroid, to this day is and was still my favorite ROM of all time. Still wonder what happened to that guy. I ended up burning up that phone so much so that it would lock up and i would have to put it in the freezer for 10 minutes before putting the battery back in and turning it on. From there i graduated to an HTC sensation. Phone was awesome, i was running an early version of the InsertCoin rom, until i was on skype and dropped the phone. For some reason upon dropping the phone, it never turned on again. I then had a samsung galaxy captivate and was dissatisfied to find out i could only get 2g on tmobile based on the antenna in the phone not being able to recieve tmo's 3g signal. From there i went on to an LG G2x, what a great phone. I was using the Tsugi Rom with the oyusame overclocked, stock voltage kernel. I got kind of sick of the phone because i had flashed every new rom that came out and it just started to get redundant for me, that was when i got my Galaxy S2 Hercules. I love this phone but alas, in my continued need to root and flash the crap out of my phone with all XDA's latest and greatest goodies, i flashed a rom that didnt boot. (This was most certainly my fault for NOT THOUROUGHLY READING THE INSTRUCTIONS) so in discovering this with only a few minutes to spare before work, i opened up odin before work and grabbed what i thought was clockwork recovery and flashed it. This was not clockwork recovery and upon and flashing i recieved what every modder on here is terrifed of. QHSUSB_DLOAD followed by that god awful windows device driver error noise. Pissed off driving to work with no phone, i immediately ordered a USB jig off amazon for $3.50 cents plus an addition $35.00 to overnight ship it to my house. So impulsive to fix my phone, i even stopped at radio shack and bought myself a pack of 100k ohm resistors to try and make the part myself. Several broken usb cables, and my kitchen table looking like a tweekers wet dream later i had no resolution. I woke up the next morning tracking my usb jig every half hour and was very excited to recieve it, goign as far as to tell my wife that i would no longer be going to get her coffee or visiting her parents as I would be pre-occupied with my phone for a while. Murphy's law however saw otherwise as this did not fix my issue either. I of course knew that if i called T-Mo the insurance would not cover this. So i started calling local cellphone repair shops. After about the fifth place i called, i realized that most of those people are lightyears behind whats happening on here and found that when i tried to talk tech they would sit there and scratch their heads. Out of options, I called the 800 number for samsung on the label underneath the battery. I very openly and honestly explained to the lady that i had rooted my phone, installed a custom recovery and was flashing custom roms. I then explained something went terribly wrong and the phone does not respond at all. I also explained the QHSUSB_DLOAD problem. I believe this explanation went a little beyond they types of calls she was used to recieving. She did however explain that Samsung provides complimentry re-flashes of bricked phones as long as there is no hardware damage done to the device. She then e-mailed me a ups label with shipping paid , and my phone is in the process of being repaired. I did buy yet another HTC sensation to get me by for the 2 business day shipping to samsung, the 7 business day evaluation and repair process, and another 2 days for me to get it back. I hope this can help anyone who has made the same mistake, and moreso i hope this can show others how rushing, being careless, and not reading the instructions can come with HEAVY consequences. Although all should work for me just fine, i still had to spend $150 on a used sensation with a cracked screen, and the nearly 2 weeks of downtime i am without my GS2.
___________________________________________________________________________________________________________________
Devices: HTC HD2(DEAD), HTC - Sensation(DEAD) Samsung Captivate(SOLD) LG G2X(SOLD) Galaxy S2 T989 (OUT FOR REPAIR) HTC Sensation (Were keeping that stock at least until i get the glass replaced and my GS2 back) LG G2X (Waiting to warranty my fiance's sensation to get it back)
Click to expand...
Click to collapse
Same thing happen to me the dreaded QHSUSB error when I bricked my exhibit2. I know how you feel.
Sent from my SGH-T989 using XDA Premium App

Lol. I bricked mt very first phone (the T989) the very first day i got it. I got it replaced for free with that 14 day gap thing that Tmo has. Got lucky. Ive never had a bad flash since.
Sent from my SGH-T989 using xda app-developers app

I've been on xda for quite some time now, and i know for a fact that people have gotten their phones replaced through standard warranty when they got that error, the old "it stopped working and won't turn on" has worked for some. If you cannot revive it chances are that no one at samsung can, i don't think they even bother, they just open it and reflash the phone.

supraman89 said:
I've been on xda for quite some time now, and i know for a fact that people have gotten their phones replaced through standard warranty when they got that error, the old "it stopped working and won't turn on" has worked for some. If you cannot revive it chances are that no one at samsung can, i don't think they even bother, they just open it and reflash the phone.
Click to expand...
Click to collapse
Stupid kies mini hard bricked my trusty vibrant... Luckily, t-mobile replaced it for free, but it was the horrible exhibit 1.

supraman89 said:
I've been on xda for quite some time now, and i know for a fact that people have gotten their phones replaced through standard warranty when they got that error, the old "it stopped working and won't turn on" has worked for some. If you cannot revive it chances are that no one at samsung can, i don't think they even bother, they just open it and reflash the phone.
Click to expand...
Click to collapse
Yeah most people went through regular warranty exchanges, but from what the OP was explaining he's a very honest person and would have said that he rooted the phone therefore he would not be able to exchange it.
That's good that he's honest, but it would have been a lot easier to just do that and get the phone next day because TMobile is just going to send that phone back to Samsung and they'll do the exact same thing they're doing to his phone now
Sent from my SGH-T989 using xda app-developers app

This sounds exactly like something I would! Especially buying parts thinking I could fix it!!
I feel so at home on xda!!
Sent from my SAMSUNG-SGH-T989 using Tapatalk 2

U could a saved a ton of time and money by just saying ur phone stopped working. Cuz technically it did
Sent from my SGH-T989 using xda app-developers app

LOOOOOOL this made my day^^
I have my phone till two years now and i bricked it once by disconnecting by mistake while unlocking bootloader (yes i fell with my phone in the hand and lukily it only disconnected and didnt pull my laptop with it.
I had it fixed in a half hour^^
Greets
Sent from my Xperia X10 using xda app-developers app

Good to know thanks
Sent from my SAMSUNG-SGH-T989 using xda app-developers app

My very first device was the Mytouch 3G on T-Mobile. Back then, it was maybe the 2nd Android phone to have even existed at that point.
Me, never being satisfied with anything stock and coming from a heavily modified blackberry, wanted to tweak the hell out of it.
Back then, it took a LOT more to root and flash, ESPECIALLY HTC Devices. There were no custom tools yet to root, and the only easy part was using CWM. You HAD to use adb commands to exploit to get root and even get CWM on the device at that point, but only AFTER downgrading it back to Android 1.5, but after that it was easy.
(I couldn't believe how fast and easy it was to root and flash on the T989 after having HTC devices up until last year)
Anyways, I somehow managed to get it CWM to boot (you had to boot into normal recovery after replacing update.zip with a CWM zip, and then flash the new update.zip file back then) and went to flash a ROM, and instead I flashed a zip, but the wrong ROM was uploaded by the OP, and what I had flashed as for the G1. It was literally only uploaded for all of maybe 2 minutes before he pulled the post down and uploaded the correct version.
I was the ONLY one who downloaded and flashed it within that 2 minute window.
Needless to say, I hated my life.
Now the funny part:
I was so paranoid back then about not letting T-Mobile know that I was rooted, that I literally bought a BRAND NEW Mytouch 3G (because you couldn't even find broken ones on ebay yet) and sold the broken one, which I bought the day before mind you, for $20. I wish I would have known that, back then, there were no counters on the MT3G. T-Mobile would have never known as it wouldn't boot.
:crying:
Flash forward to today, and IDGAF.