Screen Wont Turn On after Replacement - HD2 Windows Mobile 6.5 Q&A, Help & Troubleshooting

Tmobile UK HD2 with Cracked Dig/LCD, so I took it apart and bought a new lcd/dig. Put phone back together and I have a few problems.
Firstly to get the phone to turn on I have to plug in the mains charger, and then insert the battery. On doing this the phone powers up without me pressing the power button.
Screen light turns on but nothing on the screen. No button lights either.
I know the phone is on as I can use the vol up and down and the sounds are there.
I presume the phone works as the green light flashes to indicate I have a message etc.
Ive re-checked all connections and all are sound.
Only thing I cant check is the LCD itself.
Send the screen back ?
Anyone got an idea what could be wrong ?

anyone help with this as I am without my phone on NAND DAY !!!
Further info: Phone defo working as I can flash Stock Roms to it no prob. Also syncs to my PC. Saw that the black bar than pushes down to hold the LCD ribbon in place has broken, but unsure if this is to secure the ribbon or does it make the connection ?

5haddex said:
anyone help with this as I am without my phone on NAND DAY !!!
Further info: Phone defo working as I can flash Stock Roms to it no prob. Also syncs to my PC. Saw that the black bar than pushes down to hold the LCD ribbon in place has broken, but unsure if this is to secure the ribbon or does it make the connection ?
Click to expand...
Click to collapse
Hmm, it's possible it helps to make the connection... When you pull it it should secure the cable and at the same time make the connection better.. Try improvising, do something to hold the thing tight there.

Related

[Q] Xperia X10 won't turn on.

Hi. The phone application was not functioning well and the F/C dialog showed up. I powered off the phone and from that point, the phone won't turn on.
The battery was fully charged before this happened.
When I press the power button, the phone vibrates for half a second, the screen brightens up but does not show anything but a black screen.
I removed SIM and SD cards, removed the battery and performed the above steps but nothing happened.
I also tried to put on the charger to see what's going on. Once I plug the charger, the phone's screen brightens but shows only blank (even without pressing the power button)
When connected to the charger, the green light for charging is on for some minutes, then goes off automatically.
I tried to connect it to the PC, and PC Companion finds the device as usually. It even shows the dialog on the pc screen to mount the device.
I tried a hard reset, but does not work
On some point, the sony logo appeared and then a dialog saying: "sorry process system is not responding". The first time I pressed Force Close and the phone turned off. Immediately after that, the phone turned on and showed the exact message. I pressed "Wait" but nothing happened in the next 15 minutes.
I called Sony's support center and they suggested a software update. Did the process exactly as it should, but again, even after the software update the screen shows nothing but black. It is all the time brightened for some reason.
I tried to turn off the phone for some time by removing the battery, but as soon as I put the battery back on, the phone's screen brightens and stays that way forever.
The phone was functioning perfectly up until this issue. The only application I had installed apart from some games, was AWDLauncher. On the screen I had only a TASK widget and a battery status widget.
The phone is 3 months old and has been always in perfect condition.
ANY help would be appreciated!!!!
Many Thanks
Try to format phone with this method hope it should work as it seems the issue is with OS only ..
http://forum.xda-developers.com/showthread.php?t=717949
Many thanks for the prompt reply. I will try to do so and let you know how it goes!
o0k00l said:
Try to format phone with this method hope it should work as it seems the issue is with OS only ..
Click to expand...
Click to collapse
I tried the steps found in the link you gave me, but I couldn't go any further after step no (5) from the tutorial, as it would require to enable Debugging mode and I cannot access the OS (since the device won't turn on).
Is there a way to format all the contents of the device and have them replaced by running SEUS (as it always says that my device is up to date now)?
Was it this:
http://www.sonyericsson.com/cws/sup.../detailed/updateservice/xperiax10?cc=gb&lc=en
That Sony Ericsson told you to do?
If not, use that.
Download it, follow the steps when it says you have the latest version, press "Install Anyway".
Hope this works.
Hi itTim. thanks for the response
this is what i did but no improvement at all ((
Sounds like you broke your LCD screen somehow.
That would suck because I broke mine and it cost me $200 to fix.
Hi Hypercore.
Yes that could be the problem. The thing is that I always took rally good care of the phone, always carried in a leather pouch and never droped it. How sensitive is this lcd anyway?? Did you notice any cracks on your lcd or was the problem simillar to mine?
Thanks
When you turn on the phone does the lcd backlight turn on?
If so, look for any faint lines of color (usually a hairline size). If you see any of those then your screen is cracked.
the backlight is on, but there are no lines of colour on the lcd screen.
another weird thing is that the green light on the top blinks one or two times every time i put on the battery. even if the phone is off, once I insert the battery turns on automatically after a couple of seconds.
If all else fails you could try to flash back to your original fw with the tools here:
ht tp://forum.xda-developers.com/showthread.php?t=683793
AyDee said:
If all else fails you could try to flash back to your original fw with the tools here:
ht tp://forum.xda-developers.com/showthread.php?t=683793
Click to expand...
Click to collapse
That won't do anything.
I had almost the same issue. Nothing worked. But, when I removed the battery and left it for a day (24h) without it, it just started working again. Still working without issues..
Good luck!
Devtone said:
I had almost the same issue. Nothing worked. But, when I removed the battery and left it for a day (24h) without it, it just started working again. Still working without issues..
Good luck!
Click to expand...
Click to collapse
Phones are very wierd pieces of technology. I once bricked my k610i and that's a phone that's supposed to be impossible to un-brick, but out of nowhere a month or so later i picked it up, hit power and it turned on perfectly. Made no sense at all, but it worked.
Taking the battery out for a long time probably took all the electrical charges from it (kind of like how a computer power supply / monitor can hold power charges) and reset your handset.
Hypercore said:
Phones are very wierd pieces of technology. I once bricked my k610i and that's a phone that's supposed to be impossible to un-brick, but out of nowhere a month or so later i picked it up, hit power and it turned on perfectly. Made no sense at all, but it worked.
Taking the battery out for a long time probably took all the electrical charges from it (kind of like how a computer power supply / monitor can hold power charges) and reset your handset.
Click to expand...
Click to collapse
Indeed. It could be a frozen chip, memory fault, power-regulator and so on.
Hypercore said:
That won't do anything.
Click to expand...
Click to collapse
Ah, debug mode needed- I see now
tasaki said:
I tried the steps found in the link you gave me, but I couldn't go any further after step no (5) from the tutorial, as it would require to enable Debugging mode and I cannot access the OS (since the device won't turn on).
Is there a way to format all the contents of the device and have them replaced by running SEUS (as it always says that my device is up to date now)?
Click to expand...
Click to collapse
if you have done this and did not worked , then it is the LCD.
send it to workshop and check it there.
Guys i Really need the solve of this problem , my xperia has blank screen now without backlight and the phone completely doesn't work . when i put the battery and prees the switch botton it gives me 3 red signals , i've updated and hard reset but it didn't work , and btw the LCD is fine , any idea. did removing the battery worked???? . please answer
After a looooot of time since my latest post, finally my Xperia came back to life. There was a battery failure which means the phone was ok all the time. Weird thing is that the led light showed that the battery was charging ok. I removed the battery and after a lot of time it is working ok again. This was really really odd.
FYI for anyone else that gets this issue.
I just had this for the past hour after trying to change my baseband....could not get it back for anything.
What I did finally try was run another baseband via flash tool, connected to usb and it started flashing....after flash phone powered on again...yeah I agree with everyone, that is freaking scary when it happens.

[Q] Is my Note saveable?

Update; Rangercaptain and 440bro suggested the power switch or the usb port may be the problem.
I dismantled the phone and got my ohm-meter, the power button's circuit is opening and closing as it should between pressed and depressed.
Furthermore I tested the usb port for conductivity at each pin, from the side of the usb cable that would normally connect to the pc all the way through the 'charging flex ribbon' to the phones PCB. all connections are good.
Editing this post as I try new things i find or the things i try that people suggest.
Currently my Note will not boot into recovery or it's ROM, I was running a version of Slimbean.
I can get it to go into download mode via the volume down + power key but I can not for life of me get any pc to recognize it via usb.
I have tried Odin, Adb, and Heimdall with five or six different versions of Samsung USB drivers, Version #'s 1.5.14.0, 1.4.6.0, as well as the drivers listed in the Note 'Super thread' ATT I717 v1_3_2200_0 and two other sets of drivers that did not have version numbers listed, but came from other XDA USB problem posts. I have also tried the Google drivers from the Android SDK.
I have done all this on two different pc's and different usb cables. I've read other problem threads about this and tried most of those suggestions I.E. Uninstall old drivers, reboot, install new ones, reboot, turn off internet, plug in phone. Nada, no sign of the device being recognized at all.
I've tried the 'adb devices' command while the device was in download mode, the command returns nothing.
the USB port still works so far as i can tell, if you plug it in to a charger or the pc the phone will try to boot like it usually does if it's powered off and you plug it in and the phone had been charging fine before this issue, so i've no reason to suspect a bad port.
I have however encountered this USB problem before even while the note was stock and functioning with it not being recognizable over USB, I eventually gave up and it's what caused me to install a ROM on it in the first place because i couldn't get the official android updates with Kies (they require a usb connection).
Would a USB jig be of any benefit in this situation? After searching through XDA forums and the like that's the only thing that seems like it may work but i haven't tried. I'm unclear if it will be of any benefit because the device can already access the ODIN downloading screen.
All in all I've been working on this for about 12 hours so far, so it's possible i may have forgotten something I've tried but i'll update if i remember anything significant.
Finally I'm aware there are two similar threads currently running on the XDA note troubleshooting forums,"Is my note bricked?" and "can't enter download mode" I am also watching them and trying anything that looks relevant but elected to make a new post as my problem is slightly different in that I can access the download screen. If you posted anything there that you think may have applied here, you don't have to re-post. I'll have tried it.
Your power button is stuck.
rangercaptain said:
Your power button is stuck.
Click to expand...
Click to collapse
Thanks, I should clarify that the reboot cycle is not indefinite though. it'll give the boot vibration 6-8 times with a few seconds in between each vibration and then stop trying to boot. It also doesn't cycle every time, just occasionally. The other times it will give the vibration only once and then do nothing till you hold the power button down again as if you were trying to turn it on.
It will also stay in the downloading mode until i manually hold the power button down, so the power button is functioning correctly.
morthicius said:
. . . so the power button is functioning correctly.
Click to expand...
Click to collapse
If you say so.
Take out the sim and sd card.
I have tried removing the SD card and SIM card as well. Makes no noticeable difference.
I can also add that the USB port still works so far as i can tell, if you plug it in to a charger or the pc the phone will try to boot like it usually does if it's powered off and you plug it in.
I can dismantle the phone and check the power button if you're fairly convinced that's what it is but it really responds exactly like you would expect. The press and return feels fine and the way the device responds to it also feels fine.
Yeah I'm pretty sure it's a stuck power button. If the phone is off and you plug in usb, or charger it should NOT startup by itself. If it does it's most definitely a stuck power button. So I'm guessing your phone is no longer covered by warranty?
Before you go tearing apart the phone try this first. Take off the battery cover and where the power button is you'll see a lil outline. Flick this area with your finger a few times. Flick it hard enough to mildly hurt your finger but not the phone. I had to do this for a while till I got a new note. If that doesn't help take it apart at your own risk.
440bro said:
Yeah I'm pretty sure it's a stuck power button. If the phone is off and you plug in usb, or charger it should NOT startup by itself. If it does it's most definitely a stuck power button. So I'm guessing your phone is no longer covered by warranty?
Click to expand...
Click to collapse
It has always started up on its own when you plug it in, at least if it's out of charge. Of that I'm certain. I've had the phone a year and a half or so now. It may not boot up on it's own if you just manually shut it off and plug in a charger though. I don't recall ever trying that scenario directly. It could also be a functionality Slimbean added if stock phones don't do it.
I did just try your flick trick though, thanks. No change.
Just as another example on the power button, I can take the battery out and put it back in and the phone will do nothing until i hold the power button down a few seconds, only then does it do the the "i'm trying to boot" vibration.
Damn I was really hoping the flick trick worked for you like it did me. If you decide to take the back of the phone off, try flicking again anyways before you completely disassemble it. Once you disassemble it, there really isn't much you can do power button wise other than replace it. I'll attach a pic of the power button area for ya. I have one already torn down.
If it's not your power button, I wonder if it's your usb charger port on the phone.... That's an easier part to replace if it is.
I do feel like the USB port is a possibility, even despite my saying it appears to work. is it possible for the port to be damaged in such a way that it still allows the phone to be charged but not establish a data connection? When the phone went brick yesterday It had pretty much just finished fully charging. I had disconnected it from the charger used it a little bit, set it down when it still at about 98% battery life. Around 10 minutes later I got a text message, it made the god awful slimbean text tone (i hate that tone) I went to check it, turned on the display it then repeated the incoming text message tone about five more times in quick succession, locked up, and then died never to return.
I have had the phone apart before because i'm a curious cat, and didn't really mind voiding a warranty.
The only things that would make me skeptical of it being a usb port problem is. 1: It was charging fine and 2: the symptoms at least of the reboot problem itself are leaning towards a software issue the Slimbean install has never really worked great, and would crash and reboot probably twice a day.
Just because the button works doesn't mean it isn't stuck. I've only saved about ten phones by helping the owner to understand the cause of the reboots.
The fact that you already opened the phone increases the chance its the button. Because you said it rebooted on stock or custom ROMs eliminated software. Because your phone charges normally and is recognized by a pc shows its not the usb port.
But hey, what do I know. . .
morthicius said:
Editing this post as I try new things i find or the things i try that people suggest.
Currently my Note is in a reboot cycle, it will not load the ROM or go into recovery mode. I was running a version of Slimbean.
I can get it to go into download mode via the volume down + power key but I can not for life of me get any pc to recognize it via usb.
Click to expand...
Click to collapse
rangercaptain said:
Just because the button works doesn't mean it isn't stuck. I've only saved about ten phones by helping the owner to understand the cause of the reboots.
The fact that you already opened the phone increases the chance its the button. Because you said it rebooted on stock or custom ROMs eliminated software. Because your phone charges normally and is recognized by a pc shows its not the usb port.
But hey, what do I know. . .
Click to expand...
Click to collapse
He has more than one problem. He can NOT get a pc to recognize it. I missed it first too and had to re-read it a few times. So it could be the port, or the power button.
I think your options are....
-Find a repair center nearby
-Send it in for repair
-Find out which part is cheaper and replace that yourself first.
Sounds good. The usb port is cheap and easy and while the bezel is off you can verify the power button isn't stuck in its hole in the bezel.
Because he flashed a custom ROM from a stock ROM I took that to mean he had to connect to a pc through the usb port, either to Odin flash a recovery or Odin flash Slimbean. And he can still charge it. And data cables go bad, removing drivers doesn't take them out of memory, etc. So usb port isn't 100% bad for sure, but you're right, its a cheap, easy repair.
rangercaptain said:
Just because the button works doesn't mean it isn't stuck. I've only saved about ten phones by helping the owner to understand the cause of the reboots.
The fact that you already opened the phone increases the chance its the button. Because you said it rebooted on stock or custom ROMs eliminated software. Because your phone charges normally and is recognized by a pc shows its not the usb port.
But hey, what do I know. . .
Click to expand...
Click to collapse
If the button is 'stuck' it implies that the it's either stuck engaged or disengaged correct?
If that were true and lets say it were stuck engaged, the power button should be acting as if it is pressed. Which at first would make sense when i say it reboot cycles. It however does not make sense that i can get into download mode and the phone never shuts off until I hit the power button.
It also does not make sense that if i pull the battery out and put it back in the phone does nothing. until i hit the power button. If it were stuck engaged the phone would immediately try to boot when i put the battery back in.
The rom has also been on it for awhile now, 6 months? So i don't exactly remember the processes i went through but i know i never got kies or odin to recognize it. And Yeah, pc wont recognize it now even tryin two different pcs, one of which has never had a samsung device connected to it.
That said I wont rule the power button out either, Is there a good way to check the power button with a multimeter?
I should also say I have the phone apart now so i could at least do external checks of the power button since you both thought it was a possibility, externally it looks fine the actual button inside the case (the little white button the big silver one hits) acts fine but the circuit inside could still be screwed i suppose, which is why i ask about a meter test.
Ultimately I think you're both right though, I'm just going to have order a replacement button and port. Start with the port since it's easier, and if that doesn't enable me to connect it to the pc to flash it try the button too.
Since you mention the ROM, it is possible to have a bad download, flash the ROM, and get into a bootloop. The usual cure for that is a re-download of the ROM, wipe caches, wipe system, and flash fresh ROM.
The sticking power button is a common fault of Samsung phones. Its not broken, but it just gets a little out of alignment in its hole in the bezel. If you already wiggled and snapped, you would have noticed a difference in the phone's behavior, unless there's lint under it.
I think you have your plan -- replace the usb port, and check the button while the phone is without the bezel.
The usb port is on ebay and there is a Youtube video for the process. Everything is here:
http://forum.xda-developers.com/showthread.php?p=28247335
Good luck.
Thanks for the Help Ranger and 440.
Update; Rangercaptain and 440bro suggested the power switch or the usb port may be the problem.
I dismantled the phone and got my ohm-meter, the power button's circuit is opening and closing as it should between pressed and depressed.
Furthermore I tested the usb port for conductivity at each pin, from the side of the usb cable that would normally connect to the pc all the way through the 'charging flex ribbon' to the phones PCB. all connections are good.
I'm going to try the phone tonight on a friends PC. Who doesn't have another note but at least has a Samsung Gs2 and 3 that connect to Kies and see if i can get it to establish a connection.
If anybody else has any ideas on troubleshooting the connection between the device and a PC i'm all ears.
Good luck!
440bro said:
Good luck!
Click to expand...
Click to collapse
Well interestingly, when i hooked it up to the friends pc (using one of the same usb cables i already had) not only did his pc recognize it, the phone also booted up immediately. with 15% battery life remaining.
Strange strange.

[Q] galaxy S3 dark scrren

My galaxy S3 is showing a very weird problem. I was using the phone and before reaching home the battery when completely flat. When I arrived home and plugged the phone to the wall charger the screen remains dark, black. Now the battery is full charged (green light) but the screen remains to the same estate. When someone calls me the phone rings. When I plug it to the computer I can see the files inside the different drives. I reinstalled the OS that is 4.3 but still same problem. I didn't drop the phone and It didn't have any shock.
That is weird. I am thinking of a dead screen but before going for a chirgucal operation on my beloved phone I wanted to ask if that couldn't be a software problem.
Happy to hear from your experiences.
Boot into download mode, volume down + home then power button. If the screen is dead in download then it is hardware.
jacdem said:
My galaxy S3 is showing a very weird problem. I was using the phone and before reaching home the battery when completely flat. When I arrived home and plugged the phone to the wall charger the screen remains dark, black. Now the battery is full charged (green light) but the screen remains to the same estate. When someone calls me the phone rings. When I plug it to the computer I can see the files inside the different drives. I reinstalled the OS that is 4.3 but still same problem. I didn't drop the phone and It didn't have any shock.
That is weird. I am thinking of a dead screen but before going for a chirgucal operation on my beloved phone I wanted to ask if that couldn't be a software problem.
Happy to hear from your experiences.
Click to expand...
Click to collapse
never heard this type of problem
try to go into recovery and check if it displays anything
If successful do factory reset
In download mode i can see nothing. That is really weird. I am letting the battery drain completely and i will check. Thank you for your replies
I wanted to upgrade so far what i am getting. The screen while dark, black is reacting to touch actions: for exemple when i lock the phone with the power button i can hear the lock sound;when i unlock with the lide action on the screen, I can hear the unlocking sound. I think that must be a weird system problem. If the screen was broken will it react to such touch actions?
Lide=slide. I can actually take a call with the slide action on the screen. When someone calls me i just have to slide my finder at the proper place on the screen to take the call. I need help please.
Most probably its the hardware. Your LED seems to be ditching you. And yes a bad led can still response to touch despite of being black all the way. Actually it's the digitizer that responds to the touch NOT the LED itself.
In your cas3 so far from your feedback I can say that you are having a bad LED everything else including the digitizer is working well.
Sent from my GT-I9300
Thank you i w
ill try it check it tomorrow. I will try to install another firmware, may be 4.0.4. The one i was using i just installed it 2 days ago.

[Q] Boot loop out of nowhere, can't connect to Flashtool. Please help :(

Yesterday I picked up my phone in the morning to find that it would not turn on. I tried the usual power button + volume button combinations to get into recovery and download/flashmode but the boot loop seems impossible to break. I left the phone with the rubber band trick all night (around 14 hours) to pick it up this afternoon. No 3 buzzes from either rubber band trick, powerbutton + vol up or red reset/off button.
The only symptoms i have is:
When not connected to charger: screen off, led off, no buttons seems to work.
When connected to charger: Red led on, no buttons work.
When connected to PC: Red led on for about 8 seconds then off, repeat. No buttons seems to work.
The red led behaviour when connected to my PC seems to show that the phone is in some kind of boot loop. Flashtool log seems to back this up:
13/054/2015 15:54:43 - INFO - Device connected with USB debugging off
13/054/2015 15:54:43 - INFO - For 2011 devices line, be sure you are not in MTP mode
13/054/2015 15:54:58 - INFO - Device disconnected
This loops forever
Can anyone help me or do I need to get a new phone? The back of the phone have been smashed but I replaced it myself since im on a tight budget so my warranty is gone :/
Thanks in advance :fingers-crossed:
dont rush to replace ur phone, if its a software damage it means it can be fixed.. since the back was already smashed I would advise u to disassemble the phone and see if maybe some flat cable has gone loose. after that u can start doing software repairs.. the idea is that maybe the motherboard has got disconnected from the battery, or the usb port is not attached properly to the motherboard. Im just guessing. If its any comfort in my experiance almost any software issue can be fixed
Brontok said:
dont rush to replace ur phone, if its a software damage it means it can be fixed.. since the back was already smashed I would advise u to disassemble the phone and see if maybe some flat cable has gone loose. after that u can start doing software repairs.. the idea is that maybe the motherboard has got disconnected from the battery, or the usb port is not attached properly to the motherboard. Im just guessing. If its any comfort in my experiance almost any software issue can be fixed
Click to expand...
Click to collapse
I have just removed the back. Nothing is loose, out of place or disconnected. But that would have been weird as f since I changed the back in august thanks anyway
@knightofdenmark, You should check the battery, my guess is that it could be faulty. Take it out and get it tested for efficient functionality. If there's no enough power, establishing effective communication between flashtool and phone won't function properly. Good luck
NB: let us know what happens
New battery worked!
So I took your advise and checked the battery. No voltage what so ever, so I ordered a new one from ebay and just installed it 2 minutes ago, works like a charm
Thank you all guys
Good luck
knightofdenmark said:
So I took your advise and checked the battery. No voltage what so ever, so I ordered a new one from ebay and just installed it 2 minutes ago, works like a charm
Thank you all guys
Click to expand...
Click to collapse
I'm glad it worked out for you. I had similar experience that's why I said so.

HTC Desire 826 Screen Blackout

My friend got his new HTC Desire 826 in July 2015. He is having issue with his phone, the screen totally blackouts. He doesn't want to repair the phone because it has no more warranty and will cost much to repair. He asked my help to recover any data possible from his phone.
This was the info I got from him: The phone would restart itself once in a while in the recent few months of use (almost the time that the warranty ended). The screen would black out sometimes, a physical hit on the phone helped to recover it. At the last few moments before the screen totally blackout, the screen showed the mirror image of what it's suppose to show (he had to put it in front of a mirror to read the message). And then it just died and never come alive again. He can't remember whether he set the phone to silent mode.
What I did: Removed and put in the battery, pressing power button gives me a short vibration (I assume that means it can be turned on). Dissemble and reassembled the boards, flex cables etc. No burn mark or broken connection seen. Connect to TV using MHL cable, no signal detected. Soft reset by pressing POWER + VOLUME UP button, it vibrated and screen was still black. Since then, charging after turn on doesn't shows red light below the front camera. The metal cover above the motherboard was usually very hot whenever the phone is on. I'm working like I'm blind, omg >_<.
What's wrong with the phone? What should I do? Possible to repair? Some questions I'd like to ask.
1) Using MHL, does the phone screen need to be working then the TV will show what's on the phone screen?
2) Is there anyway I can connect the phone to other external screen and control externally?
3) I'm hesitant to repair the phone, the heating up of the motherboard scares me that the phone won't last long even after repair. Anyone has this phone and how do u go about this heating issue?

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