Database Users

My Screen Dont Work!!

Hi there, my phones screen will not work, my friend kept opening and closing they keypad quickly after which he gave me the phone back and the screen did not work!
The problem im having is that the touch screen dont work, nothin else is wrong, the screen is not cracked, jus that it dont touch sceen no more.
The bad thing is I put it on boot mode and erased the phone memory, and since the touch screen dont work i can allign the cross thing.
Does anyone know a way in which i could fix this?
Cheers.

pod8 said:
Hi there, my phones screen will not work, my friend kept opening and closing they keypad quickly after which he gave me the phone back and the screen did not work!
The problem im having is that the touch screen dont work, nothin else is wrong, the screen is not cracked, jus that it dont touch sceen no more.
The bad thing is I put it on boot mode and erased the phone memory, and since the touch screen dont work i can allign the cross thing.
Does anyone know a way in which i could fix this?
Cheers.
Click to expand...
Click to collapse
Mmmm. Tricky perhaps. A hard reset will either cure or leave you stuck. If you hard reset and the screen is indeed dead (touch wise) then you'll never get past the alignment stage. If the touch issue is software related then you would be sorted with the hard reset.
A gamble I think!!
However you are stuck at the moment so in a sense you have nothing to lose. If it ends up being useless then you are faced with a warranty (hopefully) repair otherwise some DIY though it's not entirely obvious what has broken/come loose - possibly just a ribbon connector.
Mike

Maybe the ribbon cable came loose on the LCD side?

myztikal47 said:
Maybe the ribbon cable came loose on the LCD side?
Click to expand...
Click to collapse
Yeah i think its that as well, i hard reseted it a few times with no effect, in the begining of the day, it could still reconise the screen taps around 2/3 times before it totally went dead.
Are there any tutorials on how to open it up to check the ribbon?
Thanks.

This maybe the hardware problem with the mainboard itself. I read about this on here a few times, most people had the get their phones exchange....

myztikal47 said:
This maybe the hardware problem with the mainboard itself. I read about this on here a few times, most people had the get their phones exchange....
Click to expand...
Click to collapse
Yes, I am equally unsure that this is just a simple loose connector. It may be, but it appears to be fine for a short while and only then goes off.
Like you myztikal47, I suggest going for warranty replacement if at all possible. Only if you have no warranty shuld you attempt a repair yourself - this is a notoriously ellusive fix and indeed I would say there is no 100% works for all answer. Certainly do not assume it's the screen - most probably it isn't and you'll waste your money.
There are dismantling links in this forum - but you'll find them on my small Hermes site http://michael-channon.spaces.live.com- go to the loose keyboard section and you'll see the links.
Mike

my 8525 had the same exact problem, and i swapped the LCD and still doess the same thing...
I dont know what the problem could be, and i dont have a warranty.
What could be going on????
Any 1 know where 2 find the service manual????
Jorge
[email protected]

mikechannon said:
Yes, I am equally unsure that this is just a simple loose connector. It may be, but it appears to be fine for a short while and only then goes off.
Like you myztikal47, I suggest going for warranty replacement if at all possible. Only if you have no warranty shuld you attempt a repair yourself - this is a notoriously ellusive fix and indeed I would say there is no 100% works for all answer. Certainly do not assume it's the screen - most probably it isn't and you'll waste your money.
There are dismantling links in this forum - but you'll find them on my small Hermes site http://michael-channon.spaces.live.com- go to the loose keyboard section and you'll see the links.
Mike
Click to expand...
Click to collapse
Ok my best bet is to take it to carphone, i got my screen replaced there a few months ago, think i still have a 1 year warrenty
Thanks for all your help anyways

Tytn Service manual
jblandon1024 said:
my 8525 had the same exact problem, and i swapped the LCD and still doess the same thing...
I dont know what the problem could be, and i dont have a warranty.
What could be going on????
Any 1 know where 2 find the service manual????
Jorge
[email protected]
Click to expand...
Click to collapse
Here you can found the manual
http://www.megaupload.com/?d=0GD472TP
Roby

HTC HD2 Screen Unresponsive

Hello Gents and Gals. I am trying to fix my friends HD2, I flashed his ROM with Energy couple of months ago and all was working fine. He gave the phone back to me saying that it is locked.
I tried unlocking the phone but it seems that the screen is unresponsive, so I flashed it again by going into the boot loader screen "Volume Up + Power Button". The phone stated that it is starting for the first time but the screen was still unresponsive. Any ideas on how to fix this issue? Or do I need to tell him to send the phone back to HTC for repairs?

Sounds like the touch screen died ....
Time for a repair ..
Also this really should have been posted in general , as it is not a ROM release , just an FYI

Aww okay. I'll let him know. Thanks.
I'll post like this in General next time. Tks.

HI, I have now the same problem after ROM Flashed, did you solve the problem by yourself, or really the touch screen died.
Rgds

Same thing with me. I ordered new digitizer+LCD and changed them, but the screen is still unresponsive. Other ROM didn't help.
Some advices?

i seen this happen with several phones, reflash to stock and send to HTC they will repair it for free.

I have same problem,yet my phone was bought 18 months ago...worked perfectly until now.
Can a touch screen get defective after normal usage ?

alexandruvlad said:
I have same problem,yet my phone was bought 18 months ago...worked perfectly until now.
Can a touch screen get defective after normal usage ?
Click to expand...
Click to collapse
Yes it can, if your touch functionality of your HD2 has stopped working then your digitizer has probably went out.

T-Macgnolia said:
Yes it can, if your touch functionality of your HD2 has stopped working then your digitizer has probably went out.
Click to expand...
Click to collapse
Yeah,that's what i thought too - but i read some situations where replaced LCD + Digitizers didn't solve this problem.....

alexandruvlad said:
Yeah,that's what i thought too - but i read some situations where replaced LCD + Digitizers didn't solve this problem.....
Click to expand...
Click to collapse
This is usually due to the replacement components not being properly installed. Also when one is working with the internals they have to be very careful as some of the internals are very easy to break without you even knowing you did. So the cases you spec of are more than likely not because it was not the Digitizer or LCD was not the problem, but human error.

i fixed mine and it didnt cost me
the unresponsive screen maybe the digitizer buts its more likey the end call button, believe it or not dirt can get behind the contact or because the back button is next to we use the far edge of the end call button thus leading to bending the contact, when any of this happens your screen will be unresponsive
you can either take it to a shop and pay for a new screen and digitizer or take it apart and clean the contacts
go to ifixit for step by step guides
hope that helps

Intrigued
dgr1983 said:
... buts its more likey the end call button, believe it or not dirt can get behind the contact or because the back button is next to we use the far edge of the end call button thus leading to bending the contact, when any of this happens your screen will be unresponsive
Click to expand...
Click to collapse
I have no idea what are you talking about, that doesn't make sense, as far as I know is no direct relation between END button and (non-working/responding) touchscreen: you may even disconnect/replace bottom buttons ribbon/flex from motherboard and touchscreen will work if OK(or not, if defective).
Is there anybody who can confirm this(or not)?

3 weeks ago I had a LCD/digitizer replaced (cracked screen, but was still working) all was great till 2 days ago. Screen stopped working - took it back to the place I had replace the screen and they tried 3 brand new screens and still no go. Ended up being my main board - luckily I had a spare HD2 and they pulled that board and all is well again.
Believe it or not your LCD/digitizer might be fine - find someone or a way to test main board would be where I would start after the last 3 days.
Good luck
PS - I did NOT try the end button idea prior to the repair.
Zergalot

zergalot said:
3 weeks ago I had a LCD/digitizer replaced (cracked screen, but was still working) all was great till 2 days ago. Screen stopped working - took it back to the place I had replace the screen and they tried 3 brand new screens and still no go. Ended up being my main board - luckily I had a spare HD2 and they pulled that board and all is well again.
Believe it or not your LCD/digitizer might be fine - find someone or a way to test main board would be where I would start after the last 3 days.
Good luck
PS - I did NOT try the end button idea prior to the repair.
Zergalot
Click to expand...
Click to collapse
If still in your possession, I would be interested to buy the motherboard you just replaced!
PM me if interested!

htc hd2 screen died
I also have a 2009 htc hd2 on which screen does not work.
I'd like to know if it's
- a common problem
- is it possible that it's a software (flashing) issue
- can it be replaced and for how much

martinmartiini said:
I also have a 2009 htc hd2 on which screen does not work.
I'd like to know if it's
- a common problem
- is it possible that it's a software (flashing) issue
- can it be replaced and for how much
Click to expand...
Click to collapse
From my own experience :
1. It's a common issue, there are hundreds of reports in this forum and I read them all because I had the same problem some months ago
2. Probably not. It's generally hardware-related and often the digitizer (touch responsive screen) . Brief explanation : There's a flaw in the design of the HD2, the thin cable wiring the digitizer to the motherboard, is just below the power button. After some extensive use of your powerbutton, it might happen that the power button touches the cable and cause some kind of shortcut in it which makes the digitizer unresponsive to the motherboard.
3. I replaced mine here : http://www.htcphonerepairs.co.uk/ . Fast repair, secure shipping to Belgium, good price and excellent customer support. (Sounds like advertizing but I swear to be only a happy customer )
There are also multiple videos on youtube explaining how replacing the digitizer yourself if you dare !
Also, I read answers saying that you can somewhat "play" with your buttons (especially the power one) to turnaround the problem. That's correct, BUT it's absolutely inevitable that the problem with come back again if you use the buttons, and you'll have to force more and more to unblock again and repeat again and a again... and that will damage your button bar.
I did this during almost 2 months and that put down all my buttons and now they are really close to the chassis which is very annoying. If only I knew it before I would have replaced the digitizer directly !
For 6 months with my new digitizer + using ICS with soft buttons, I have no problem at all !

bib*oops said:
I have no idea what are you talking about, that doesn't make sense, as far as I know is no direct relation between END button and (non-working/responding) touchscreen: you may even disconnect/replace bottom buttons ribbon/flex from motherboard and touchscreen will work if OK(or not, if defective).
Is there anybody who can confirm this(or not)?
Click to expand...
Click to collapse
Just because this dude has "no idea" it doesn't mean he knows it better.
It IS the END button that gets pressed too often and at some point it begins to mess with the digitizer connection. It can be dirt. It can just be the cable came lose and needs tightening, it can be wear-out.
whatever it is, it is caused by the end-key being too close to the connector cable.
If you guys only searched for this on the HD2 Forums before posting this Thread hat not been necessary. It is the most well known design flaw of the HD2 and as such well documented and commented here.

Sneakyghost said:
Just because this dude has "no idea" it doesn't mean he knows it better.
It IS the END button that gets pressed too often and at some point it begins to mess with the digitizer connection. It can be dirt. It can just be the cable came lose and needs tightening, it can be wear-out.
whatever it is, it is caused by the end-key being too close to the connector cable.
If you guys only searched for this on the HD2 Forums before posting this Thread hat not been necessary. It is the most well known design flaw of the HD2 and as such well documented and commented here.
Click to expand...
Click to collapse
This is truth. Save yourself some time and frustration and repair it or get it repaired. It's a great phone.

Sneakyghost said:
Just because this dude has "no idea" it doesn't mean he knows it better.
It IS the END button that gets pressed too often and at some point it begins to mess with the digitizer connection. It can be dirt. It can just be the cable came lose and needs tightening, it can be wear-out.
whatever it is, it is caused by the end-key being too close to the connector cable.
If you guys only searched for this on the HD2 Forums before posting this Thread hat not been necessary. It is the most well known design flaw of the HD2 and as such well documented and commented here.
Click to expand...
Click to collapse
You didn't get it right or at all:
END key may determine touchscreen failure along the time(being the CAUSE! of this), but the EFFECT is an unusable touchscreen, which cannot be repaired in any other way than replacing it(the touchscreen!!, I mean).
Any other attempt to repair, clean, bend, press, cut or whatever WILL NOT FIX an already faulty touchscreen (even caused by END button excessive or not usage) and who thinks otherwise, no problem with me: SWEET DREAMS!

You sound like my comment hurt you. Sorry if it did. I'm not one hundred percent sure that this issue can be fixed without replacing the screen, yet fairly certain. I've now disassembled two HD2 and couldn't quite find the precise spot where the damage occurred, yet after properly assembling the devices again, one came back alive, the other not. The one which has the screen and buttons not working right is the one that got thrown at me by a kind person. It most likely has physical damage somewhere, although I couldn't locate it. The other one didn't get damage and has screen and buttons work well after complete disassembly and assembly.
Both devices also have different screen types.
I now gave up both devices and am withdrawing myself from the HD2 world. Too many issues with the devices getting old.
sent from the tip of my finger

[Q] [DZ] Dead Touch Screen Area - what could be the problem?

Hi!
I recently noticed that an area of my HTC Desire Z's Touch Screen is dead. It might be related to me dropping the phone accidently about 1 meter on the ground, but I didn't immediately notice the effect.
You can find a video of my symptoms here:
youtube.com/watch?v=bHB41nXtwns
(Sorry, I can't use a direct link since this is my first post here)
Which part of the phone could be defect, according to the symptoms? The digitizer? Even more? Are there maybe any workarounds I could try to get it working again?
What I tried so far is turning the phone off, removing the battery, turning it back on (no difference). Also, I tried with and without a charger connected and with and without touching the phone's body to establish a common ground level (so not the usual touch screen problems here).
Thanks in advance!

If there's a screen protector on, try removing it and see if it behaves differently.

Hi,
burtcom said:
If there's a screen protector on, try removing it and see if it behaves differently.
Click to expand...
Click to collapse
There is no screen protector on it. The device is unmodified with regards to hardware / accesoires.

It could be a loose ribbon cable, tear down the phone and reattach the cable that goes to the screen, or call in a warranty.

brfield said:
It could be a loose ribbon cable, tear down the phone and reattach the cable that goes to the screen, or call in a warranty.
Click to expand...
Click to collapse
I advice not to do this... first call your mobile carrier. Tell them about your issue, try to get it replace if possible. Tear downs should only be done if that's the last option you have...
Sent from my HTC Vision using XDA App

just get a replacement and dont tell them what happened

I didn't buy the phone from a carrier but from amazon.co.uk. I wanted to avoid using warranty because it's a lot of trouble (phone needs to be sent to the UK, i need to S-ON and restore the original ROM/recovery firmware first, phone will probably be away for some weeks).
As it's only a minor issue, I would try to repair it myself (I'm confident that I can do that). What I am looking for is just a hint with which I can confirm that it's just the digitizer so I don't order the wrong replacement part and have to open/close the phone several times.

mstplbrg said:
I didn't buy the phone from a carrier but from amazon.co.uk. I wanted to avoid using warranty because it's a lot of trouble (phone needs to be sent to the UK, i need to S-ON and restore the original ROM/recovery firmware first, phone will probably be away for some weeks).
As it's only a minor issue, I would try to repair it myself (I'm confident that I can do that). What I am looking for is just a hint with which I can confirm that it's just the digitizer so I don't order the wrong replacement part and have to open/close the phone several times.
Click to expand...
Click to collapse
I'd recommend against that, as its still under warranty. Its too easy to mess something up when you do-it-yourself, and you would void the warranty.

LG G2: Screen Flickering

[HELP] LG G2 screen flickering
Hi everyone,
As the title said, i have been suffering for more than 4 days from Screen Flickering, i tried every possible solution in XDA but still out of luck, the issue happens with stock (rooted and none-rooted) ROM, AOSP, CM Roms, in recovery, download mode, even while flashing new Rom, my phone is out of warranty and i am afraid that this is not a Hardware fault as some people mentioned before, so a screen replacement may not be the right solution.
Any help would be appreciated.

Please anyone can help!

S!LeNT J0cK3R said:
Please anyone can help!
Click to expand...
Click to collapse
Can you boot your phone? What does the screen flashing look like? Colors?

Damaged connector for LCD (flex cable or LCD), i had flickering and glitching because these two were damaged

Mashed_Potatoes said:
Damaged connector for LCD (flex cable or LCD), i had flickering and glitching because these two were damaged
Click to expand...
Click to collapse
Ah alright, well glad you figured it out! Good luck fixing it!

Mashed_Potatoes said:
Damaged connector for LCD (flex cable or LCD), i had flickering and glitching because these two were damaged
Click to expand...
Click to collapse
So you think this is not screen related, because i don't want to spend lot of money to change my screen and have the same issue

Mashed_Potatoes said:
Damaged connector for LCD (flex cable or LCD), i had flickering and glitching because these two were damaged
Click to expand...
Click to collapse
S!LeNT J0cK3R said:
So you think this is not screen related, because i don't want to spend lot of money to change my screen and have the same issue
Click to expand...
Click to collapse
Well it depends, it probably is a hardware issue but I don't know if you've accidently changed some settings under devloper options. There are some settings in there that cause the screen to flash. If you can boot up and check the settings, read through them and see if you have accidentally clicked any of them.

S!LeNT J0cK3R said:
So you think this is not screen related, because i don't want to spend lot of money to change my screen and have the same issue
Click to expand...
Click to collapse
You could try changing the flex cable, its a cheaper part. (20$-30$)

bigdaddysmallmomma said:
Well it depends, it probably is a hardware issue but I don't know if you've accidently changed some settings under devloper options. There are some settings in there that cause the screen to flash. If you can boot up and check the settings, read through them and see if you have accidentally clicked any of them.
Click to expand...
Click to collapse
Bro, this issue is happening to me even on a fresh stock Rom (4.4.2 and 5.0.2), even on recovery or while flashing a new Rom the screen keep flickering, so i's absolutely not software related.

S!LeNT J0cK3R said:
Bro, this issue is happening to me even on a fresh stock Rom (4.4.2 and 5.0.2), even on recovery or while flashing a new Rom the screen keep flickering, so i's absolutely not software related.
Click to expand...
Click to collapse
Alright well I asked earlier exactly when it was happening and you didnt answer so I was just guessing, but if you know it's hardware try the cable replacement

Mine got that problem too. I had to put some pretty thick (about 1mm) double-sided tape between both 2 display (I guess) connectors and plastic screwed shield.
It's my third day without flickering screen since the fix.
I hope it'll help

Strange black screen issue with fully working screen (electrical, not physical).

Hi,
i bought a factory refurbished I9600F from aliexpress. It worked great for 3 days, then the phone became slow to respond, the screen was flickering in yellow-green tones, and then wouldn't come back on but stay black. (but I would still get notification sounds for incoming messages, the notification LED was still working, and the menu keys also light up when I press home/power).
Pulling the battery fixed the issue once, but the problem came back after 1 hour.
I managed to revive the phone once more by pulling the battery and holding the power button to drain all remaining power in the device. The phone was working again for a few hours, but now it's back to having a black screen and even the power drain method doesn't work anymore...
So i'm guessing that replacing the screen won't fix the issue, since the screen is working just fine for a a while (both image and touch are perfect) - but then somehow there must be some electrical issue that causes the graphics unit to malfunction.
I checked the easily accessible connector to the left side of the battery, but it seems that the screen is mainly connected via flex cables that cannot be accessed unless you heat up your device and pry out the screen.
I have found some information on the internet that pressing hard on the spot where the flex cable connector is might fix the problem, but this didn't work for me.
FYI, I'm running the default Samsung firmware the device shipped with and used Kies + OTA update to get the latest official FW. No rooting or any other mods. Just some regular apps installed.
Any recommendation what I could try to fix this problem? Thank you all!!!

BTW, I have found similar reports on the internet here:
http://forums.androidcentral.com/samsung-galaxy-s5/405238-galaxy-s5-static-screen-won-t-turn.html
But the linked how-to-fix guide states that heating up the display assembly is only recommended on devices with a broken screen... So now I don't want to risk breaking my working screen.

So mainly my options are
a) open the device to check the flex cable connection
b) buy a new battery to see if that solves if (some people have reported success with a different battery)
c) buy a new screen assembly on aliexpress for around €135 and hope that a new screen will fix it...
Thoughts?

wutzin said:
So mainly my options are
a) open the device to check the flex cable connection
b) buy a new battery to see if that solves if (some people have reported success with a different battery)
c) buy a new screen assembly on aliexpress for around €135 and hope that a new screen will fix it...
Thoughts?
Click to expand...
Click to collapse
Hello, how did you solve this? I currently have the same problem.

gustav9797 said:
Hello, how did you solve this? I currently have the same problem.
Click to expand...
Click to collapse
sorry, i actually never was able to get this resolved. I tried removing the screen to get to the flex cable, but broke the screen because I hadn't heated up the glue enough...
Had to buy another device.
Sorry I don't have better news...

wutzin said:
sorry, i actually never was able to get this resolved. I tried removing the screen to get to the flex cable, but broke the screen because I hadn't heated up the glue enough...
Had to buy another device.
Sorry I don't have better news...
Click to expand...
Click to collapse
I'm going find out the cause for this issue. I've disassembled one device that only lights up when it is warm. If I put it in the cooler it refuses to light up for some time after that. I tried placing only the screen in the cooler, also only the phone body in the cooler, but couldn't find any difference doing this as it refuses to light up both times for a couple of minutes then it works great again.
I've ordered another device that had its screen shattered so I will try my current screen on that device.
It could be some internal hardware fault in the mobo, it could be the LCD connector having a bad connection somehow, it could be the screen assembly itself, but I will find out eventually.
I've seen many places on the internet where people say this is a software issue. There is a very simple answer to that question. How could it be a software issue if not even the boot logo shows up when you start the phone?
I will keep this thread updated.

Verified that this is a problem with the motherboard. What circuit on the motherboard could have problems with cold temperatures? The main power one? If so, I will try replacing it with a different one.

Update: Was not able to fix it. Motherboard is now scrap.