Database Users

Strange screen problem

Hello xda community ive got a strange problem that i wish you could help me with, sometimes my HTC Wizard 2.x IPL freezes and the screen goes white with like a 'fading effect' for no reason, its most probably hardware problem right?

same white screen of death here.
I am having the same problem. I have not been able to isolate if it is Flash memory problem, battery or some other hardware problem.
I was having some major problem with my early 2006 version of T-mobile MDA. I had upgraded to the official T-mobile upgrade ROM when it was released a couple of years ago.
The phone started flaking out this spring. at one point I had to buy a new battery and charger because I had discharged the internal battery too far. I've also "jump-started" the battery using a bench power supply to apply a constant current to get it up to speed when I had a dead battery at work.
And, when I busted the USB/power connector, one of the re-work techs soldered it back on after I dissambled the unit.
Anyway, I had been having lock-up problems before the latest dead battery issues, and had wanted to try a new ROM. When the unit did a hard reset of its own, I decided I had nothing to lose. It had been resetting itself several times a day.
I installed Slim Diamond, and enjoyed WM6 greatly. Phone worked more or less fine for more than a month, and then it started failing again. I found myself having to remove the battery to recover, and sometimes keeping the battery out for hours seemed to help. It got so bad it wouldn't even boot to a usable phone before giving me the White Screen of Death.
I managed to get it back to bootloader and re-install diamond. Worked fine getting booted, and I made some calls. then locking up in WSOD again. Blasted a Prodigy ROM onto it. Booted and let it sit connected by USB. Everything seemed fine, downloaded e-mail etc. Then, unplugged and left the house. When I tried to call, everything went fine until the point where the call should have stopped ringing and connected. Then, WSOD.
Is there a non-hardware fix for this, some ROM or tweak?
If it is a hardware fix, what is the likely culprit? I can do SMD work if needed.
Thanks
Whazoo
P.S. I should mention that when the WSOD would strike, the phone locks up completely, and if left like that, the battery gets warm.

excactly what happens to me..btw for some reason i think its battery problem, because i got it off ebay and ive seen other similar problems with bad batteries for some reason..hope someone can help us

phr0z said:
excactly what happens to me..btw for some reason i think its battery problem, because i got it off ebay and ive seen other similar problems with bad batteries for some reason..hope someone can help us
Click to expand...
Click to collapse
I was thinking that. I had noticed that it failed most often when trying to make a call, something that is power intensive.
I tried something today. I left the SIM out and just used it as a PDA. It seemed to work longer between reboots. However, it still rebooted while connected to a USB power source. Also, it seemed to not want to charge at times.
Even more interesting is this thread which may be related.
http://forum.xda-developers.com/showthread.php?t=444256
The excessive battery usage seems to fit with what I am getting. I wonder if something has been triggered which causes the system to drain th battery quickly, and lead to low-voltage conditions.

I am having the same problem, sometimes the screen is filled with vertical lines and then fades to white. Only thing that helps is sliding out the keyboard. I think this is due to the faulty flex cable that connects the motherboard and the screen. I have ran some tests when my device was disasembled (but powered on). The screen was working fine, even when i was bending and streching the flex cable, but after asembling it back again, screen glithes continued. I've then reinforced the flex cable connector on the mobo with some rubber pads and electrical tape, and this seems to be almost working (screen jerks only happen 2-4 times a week)As Whazoo pointed out, those screen jerks used to appear more often during power intensive tasks, like receiving a call. Probably this is due to the loose cable connection. Less power than needed is flowing through the circuits and this causes the sreen to "crash".
BTW I have T-Mobile MDA

I have the same issue with my xda mini s and have been contemplating disassembling my phone for a closer look.
It is difficult to take these phones apart ?
Cheers
TT

I've had the same issues. I suspect faulty hardware. Do you guys experience "dancing" pixels short before a WSOD? Those dancing pixels can be overcome when applying sufficient pressure to the bottom of the phone. I personally suspect a worn flatcable between motherboard en LCD unit which fails to make a solid connection between both. I have to mention that I too have jump started a "dead" battery once. WSOD problems started occurring several moths after. I doubt it is linked.
Currently, the phone is stuck in bootloader, being unable to flash a new ROM on to it since it keeps on rebooting itself every few seconds to minutes. I guess it is a total loss. The phone lasted only a few months when the stylus started to drop out and it took only 16 months before the dreaded WSOD started. At first only a couple of times a week while increasing after a few weeks. I recon a motherboard transplant could fix the problem.

Hi,
got the same problem. And i have also "dancing" pixels, the screen seems to "flicker"

oh dear!
I'l have to see if this is a simple flex cable issue. Of course I had just convinced the wife the MDA I have was a hopeless case. I replaced it this week with an 8925 off eBay that I unlocked and flashed to the HTC WWE for Kaiser. BTW, the Kaiser/8925 is a nice upgrade. So, I'll take apart the old phone and see if I can get it working. If so, I'll keep it for a backup.
One question I have is why does it seem to be related to radio usage and battery drain/short life.

mine begun after changed 2.21.0olip
flashing bluring and reboting.
i´m trying find a original rom to see if fix it...
after i upgrade to wm6 the old one (wm5) that was corrupted and missing files its draining the battery in few minutes.......
----------------------------------------- xx ------------------------------- xx --------------------------------------
7 days trying fix it....
My friend was think a batery problem... He buyed a new one and used the original rom on that. The defect not desapear. The screen still blur, flashing, and the batery begin to warm up to fast, one day the batery was near blow... the batery was too fat, like a pig near christmas!
He give me the Wiza200, I find a used batery, thats work for 4 days and begin to warm up, the celular was draining to fast, and the batery warm up to fasssssst tooo. after 2 days its just no signal...
Take of batery, wait 50 minutes on charging. Turning on, reboot, reboot, reboot, reset, then it begin to be normal, after 5 minutes, no signal, and flashing and bluring the screen and itelf reboot and lock on boot screen... Anoyed i used a ATX pc power suply direct on + and - contacts, soldered some capacitors on main board and same problem. Its draining near 500ma... with sim card its work fine. i can use the games for near 20 minutes, no blur screen just reseting. I take voltages near the processor and radio and sim card suply its almost stable... variation of 10mVolts - 50mVolt... I changed the capacitors for new ones... The mobile begin to be more estable, but bluring and rebooting when put the sim card, reseting near 4 - 5 times on windows... and be estable again... but no signal.
I made a full rom backup, radio etc... tryed to change ROM... nothing change, then I tryied change radio... used the hardcpl.... sucefull changed the radio and the the ipl and cpl.... puff its just reseting and reseting again... Just dont reseting when on it was on bot block screen. I lose time searching a original ROM... My friend send me last rom used... all software back to original and the problem.... Damn...
This device was used near a beach for 2 years...
Unescrewed, again open the case... lift the shields.... clean... clean and clean... this device stoped to reboot, but no signal... wi fi useful, windows ok... used it for 2 days with no problem... when its locked up, and i reset it... Damn dont turn on, just on boot screen, and blur and flash screen and reboot itself near 3 seconds...
I lose my mind. I dissasembled all, put all things on water and a little of a soap, washed all device... for 30 minutes.
warm up all device for 40 celcius for 40 minutes and reasembled... Nothing... warm up with 40 celcius for more 30 minutes...
Wow. its turn on again......!!!! And COOOOOOOOOOOOOOOOOOOOOOOOOlllll no more drain the batery!!!!!! Excelent signal and im using the fone! 40 minutes and its normal... y go to street, receive some calls and its alive!!!!
Resume: 90% of hardare celular problems is sweat of hands, just need clean.
I hope help someone with it

Same prob a year ago.
I had the same problem a year ago. Sorry to say I never found a solution. I ended up buying another used one from eBay. ROMs won't help I flash my phones a lot looking for the perfect combination. I think you are on the right track with the connector between the display and MB. I think it has to do with condensation and heat. Explains why heavier powered use causes the problem. The more battery drain, the more internal heat. When I finally gave up on mine, It wouldn't boot anymore. Actually it does boot and everything is working. I've even received calls with the screen white. I picked it up a couple months ago, tinkering with it. I put a fresh battery in and it booted up and lasted about 10 min. I was excited for a while thinking time had fixed it. Bummer. Good luck. I hope you find your solution.

i've been experiencing vertical lines & flicker with my tmobile mda especially within the submenus. found out that by lowering the overclock (omapclock) to a value near its default clock speed, the problems disappear. i'm guessing it might be related to overclocking my gadget.

{SOLVED}Prophet Internal microphone not working. Experiences? Ideas? Solutions?

[ALREADY SOLVED AT THE BOTTOM OF THIS POST]
Hi, I'm new to this and so I'll try not to waste much of your time and patience...
Today I opened up my htc prophet - or QTEK S200, as it's called here - (for now, the phone of my life), to glue the clip that prevents my stylo fom being always falling by itself.
I did everything very carefully (as I've said, this phone is my old fellow, I didn't want to risk it) and managed to fix what I wanted! (so far, so good)
I then turned the device on and was glad to see that everything seemed to be just fine, the antenna was working, wi-fi was just as always... I thought I had it right, at last (since I already had lost my stylo more than a few times)!
THE PROBLEM showed up when I called someone...
I heard the ringing...ok
I heard the other person pick up...ok
I started talking...But soon realised that the person wasn't able to hear me speaking.
My Prophet's microphone is dead!!
I got it to detect some noises by "short-wiring" (or "making a short-circuit"...sorry, I'm not very good with this kind of technical english :/ ), a (very) little black rectangle, placed just left of the internal microphone when you look at your prophet from behind (like as if you were seeing it standing up, with its back towards you).
But it did nothing besides those sibbling noises...I'm afraid it's dead.
I can still make use of the microphone that comes with the headphone, but it's a bit annoying to have the "thing" allways around my neck...
Please help me with this thing
My questions:
1)What do you think happened to it?
2)Does anybody has had a similar experience...(if so, was it solved?)
3)Does anybody have a large picture showing the microphone of the prophet, so I can check if something's missing in the board, please? (I found a picture on the forum but I could see the mic area too well)
Thank you in advance, you are the only ones who might be able to cure this handicapped phone.
NB: If I manage to take a good picture of my internal microphone, I´ll post it right then.
[SOLUTION TO THIS CASE:]
I actually found out that the "short-circuit" I mentioned was in fact what was missing..
If you look carefully, you may find that what I thought to be a "very little black rectangle" were in fact two VERY VERY small black squares with some soldering dots in the middle. I guess that some component is missing here, but I took a chance and found out that if I connected these two dots with some metalic piece (I used my flat screwdriver), the micro got straight back from the underworld and started immediately "hearing".
So, what I did was to place a little chunk of copper wire linking the solderings together and then, to keep it in place, I made a small ball from a bit of cotton and sticked it over the copper with tape so it would keep its position. Just be sure the copper keeps the dots connected and you'll have your mic again, loud and reasonably clear (as it always was...remember that the quality of prophet's micro has never been such a greatness)...perfectly audible, just as before the problem started.
If you want, you can rub the copper in a small drop of white vaseline (the normal vaseline used for hydrating skin and other things), to enhance the contact between the joints...but after some time, this might turn against you as vaseline will dry out at some point and then you'll be forced to repeat the whole thing.
Cheers,
Manuel Gomes

Hi please can you send me the picture of your microphone, the way you fix it? [email protected] thanks!!

mangomes said:
[ALREADY SOLVED AT THE BOTTOM OF THIS POST]
Hi, I'm new to this and so I'll try not to waste much of your time and patience...
Today I opened up my htc prophet - or QTEK S200, as it's called here - (for now, the phone of my life), to glue the clip that prevents my stylo fom being always falling by itself.
I did everything very carefully (as I've said, this phone is my old fellow, I didn't want to risk it) and managed to fix what I wanted! (so far, so good)
I then turned the device on and was glad to see that everything seemed to be just fine, the antenna was working, wi-fi was just as always... I thought I had it right, at last (since I already had lost my stylo more than a few times)!
THE PROBLEM showed up when I called someone...
I heard the ringing...ok
I heard the other person pick up...ok
I started talking...But soon realised that the person wasn't able to hear me speaking.
My Prophet's microphone is dead!!
I got it to detect some noises by "short-wiring" (or "making a short-circuit"...sorry, I'm not very good with this kind of technical english :/ ), a (very) little black rectangle, placed just left of the internal microphone when you look at your prophet from behind (like as if you were seeing it standing up, with its back towards you).
But it did nothing besides those sibbling noises...I'm afraid it's dead.
I can still make use of the microphone that comes with the headphone, but it's a bit annoying to have the "thing" allways around my neck...
Please help me with this thing
My questions:
1)What do you think happened to it?
2)Does anybody has had a similar experience...(if so, was it solved?)
3)Does anybody have a large picture showing the microphone of the prophet, so I can check if something's missing in the board, please? (I found a picture on the forum but I could see the mic area too well)
Thank you in advance, you are the only ones who might be able to cure this handicapped phone.
NB: If I manage to take a good picture of my internal microphone, I´ll post it right then.
Manuel Gomes
Click to expand...
Click to collapse
i have the same problem like u have but i have also other problem which is if i play any music then it has no sound at all.
if there is any solution then please i would love to solve and start to use my nice prophet.
thanks in advance

boas manuel
podias me enviar as fotos por mail para eu eu ver?
tambem estou com o mesmo problema.
diz alguma coisa, que depois eu envio-te o meu mail por pm.
abraço

joeydinis said:
boas manuel
podias me enviar as fotos por mail para eu eu ver?
tambem estou com o mesmo problema.
diz alguma coisa, que depois eu envio-te o meu mail por pm.
abraço
Click to expand...
Click to collapse
desculpem sera que me podem ajudar?
nao sei onde fazer a ligaçao para o micro funcionar.
excuse will be that can help me?
do not know where the link for the mic work

HTC is turning off :(

Hello everyone! I have problem with my phone because sometimes is turning off without any reason, I bought brand new battery and is still same when is switched off and I want to put it back on i must take off battery for couple of minutes, then put battery back and then switch on anybody know whats happened?? And how to fix it!!

It's the most standard problem with htc models touch and elf...
This problem is hardware based! in this condition there are only 2 things you can do:
1.send the device to a htc service center and get the motherboard changed for $300+ if you are out of warranty.
2.Or open the mobile and put a piece of thin plastic in between the omap prosessor chip and the steel piece tha goes over it and then put the second cover on top in order to apply pressure to it because the solder pins that are in between the cpu and the mobo are not connecting properly and lose contact so the phone goes off or freezes then goes off and some times stays off. Make sure that there is enough but not to much pressure applied to it! it worked for mine but i did it because it was out of warranty... its a temporary fix but if you are gentile to it after it will surely work for a few more months...
IF YOU HAVE NEVER DONE SOMETHING LIKE THIS BEFORE OR YOUR TOUCH/ELF IS STILL IN WARRANTY DO NOT TRY IT!
I will post a pic that i took when i did mine if anyone is interested... Let me know...

Thanks for reply!
Uff.... first way to fix it is a little bit too expensive! And 2 way to do it seems quite easy, so i try to do it this way Could you add any picture of this and just tell me how to open this phone?
Many thanks!

@Firestarter42
Thanks man!!!!
did what you said, the plastic trik, and the phone is back to life (it was totally dead and didn't charge) you save a life today!!!

I had the same problem untill one day when he didn`t want to turn on and now i do not know what to do with it how to make it work again

Dear Sir,
I have just tried method 2.
My elf didnt have a metal cover on the processor, lol... got it used from someone... or should I say abused? lol
anyway, I hope it works. will update...
here's a link for the demonstrated tutorial:
http://forum.xda-developers.com/showthread.php?t=476152
Thanks a lot again.

I haved the same problem.....and i realize after many times that I didn't change my ipl and uspl!!!so my cocked rom frequentely turn off my device!!!now it's all right!!!!!!!

i had the same problm too....
it kept turning off and just a few weeks ago it would never turn on...
i did try that trick of keeping the plastic thingy on the omap processor ... it worked for a few weeks max after tht it happened as above
finally took my phone to htc.. told them it was gift and i dont have the invoice... actually purchased frm ebay for 150$ .....
they checked it was in warranty,.. they replaced the board... hurray... my elfin is alive again.. and in wm6.1
hope htc fixes this crap issue as many face this problem

My HTC elf was freezing, rbooting and so on, i was thinking that it was a windows/flash/third party programs problems ....
BUT I confirm that the method "open the mobile and put a piece of thin plastic in between the omap prosessor chip and the steel piece tha goes over it"
brings my htc elf to life again ... stable !
(i've done it with a metal piece and not plastic.)
Thanks for the advice !!!!

my elf was freezing and turning off so i try this 2. method and it works, and elf is much faster then before in my case...

I've never had this problem before but this week my phone switched itself off (so had to boot up again) a couple of times. I did try a new custom rom but I've also been using a different charger (USB mains adaptor) and a replacement battery (this seems to be a poor replacement battery which seems to make up the battery level.
So I don't know what was causing it. For some reason, removing the SD card and re-inserting it seems to have done the trick for now but I'll keep watching it.

Hi guys
My phone is, usually at night when there is no use, switching the screen off, the earphone green indicator flashes but the phone will not turn on when I press the power button, I have to do a soft reset each time to get it back on again (even though it appears to be on with the flashing green light). I cannot get calls or text and my alarm fails to sound. Have overslept a few times now!. Also, its battery has gone for a ball of ^&*%. Will this trick help? Thanks a lot!

Turn off as in literally 'poof!' or, it will restart?

The only way to get it to restart is to do a soft reset, or remove and replace the battery. The phone's green light will flash but there is no way to the screen to activate or use the phone - make calls, use the alarm, receive etc. The screen stays black, no use trying the power button either...

Firestarter42 said:
It's the most standard problem with htc models touch and elf...
This problem is hardware based! in this condition there are only 2 things you can do:
1.send the device to a htc service center and get the motherboard changed for $300+ if you are out of warranty.
2.Or open the mobile and put a piece of thin plastic in between the omap prosessor chip and the steel piece tha goes over it and then put the second cover on top in order to apply pressure to it because the solder pins that are in between the cpu and the mobo are not connecting properly and lose contact so the phone goes off or freezes then goes off and some times stays off. Make sure that there is enough but not to much pressure applied to it! it worked for mine but i did it because it was out of warranty... its a temporary fix but if you are gentile to it after it will surely work for a few more months...
IF YOU HAVE NEVER DONE SOMETHING LIKE THIS BEFORE OR YOUR TOUCH/ELF IS STILL IN WARRANTY DO NOT TRY IT!
I will post a pic that i took when i did mine if anyone is interested... Let me know...
Click to expand...
Click to collapse
Thankx your solutions worked out with my HTC Touch and i get replaced omap processor

power problem on Elf (not the usual)
hello guys, i have an Elf T-mobile that someone "lost" i found it, but was bricked...i unbricked following the awesome guides on the forum and installed on it the original italian rom (obviously am not german)
but...here's the problem, when i press the power button (should get it into stand by mode like every pda does) or also when goes on stand by itself, just shuts down !!!
then the pda auto soft resets, until the end...doesn't have the "auto power off problem" like i readed on the forums...however it tried but didn't solve the problem
i think is a problem with the radio, or the IPL or SPL (i tried 1.11.0002 IPL and 1.11.000 SPL...then 2.2x.xxxx IPL and SPL...now i tried 3.14.0002 IPL and 3.14.0000 SPL, also tried different radios...
but the problem remains...
EDIT: Problem solved, changed the little battery in the motherborad, it worked for me

help
Firestarter42 said:
It's the most standard problem with htc models touch and elf...
This problem is hardware based! in this condition there are only 2 things you can do:
1.send the device to a htc service center and get the motherboard changed for $300+ if you are out of warranty.
2.Or open the mobile and put a piece of thin plastic in between the omap prosessor chip and the steel piece tha goes over it and then put the second cover on top in order to apply pressure to it because the solder pins that are in between the cpu and the mobo are not connecting properly and lose contact so the phone goes off or freezes then goes off and some times stays off. Make sure that there is enough but not to much pressure applied to it! it worked for mine but i did it because it was out of warranty... its a temporary fix but if you are gentile to it after it will surely work for a few more months...
IF YOU HAVE NEVER DONE SOMETHING LIKE THIS BEFORE OR YOUR TOUCH/ELF IS STILL IN WARRANTY DO NOT TRY IT!
I will post a pic that i took when i did mine if anyone is interested... Let me know...
Click to expand...
Click to collapse
can any one provide some sought of tutorial for this please
thanks

ishaan_chd88 said:
can any one provide some sought of tutorial for this please
thanks
Click to expand...
Click to collapse
I'm presuming you mean for option 2, as 1 is quite obvious
Anyways, I haven't done this, but I am posting my best guess (untried, untested, just a theory).
Open your phone up and completely dissamble as described here. Completely strip it down so you only have your mainboard. Clearly take all the necessary precautions before hand (backup, etc etc.)
When done, you will see there are blank shields above where the chips will be, if you look, you can see little dimples, you can ease these off here. This will get you into where the omap processor is. You can then put the plastic on top, and make sure it is done as described. Should literally be a case of putting it all together and hoping for the best after that. I will have a look at some point (can't promise when) and see if I can take some photos of where this will go etc.
An alternative would be to try and reflow the joints of solder with a heat gun... very dangerous considering how tight the components are packed in, and overkill.

captainstu72 said:
I'm presuming you mean for option 2, as 1 is quite obvious
Anyways, I haven't done this, but I am posting my best guess (untried, untested, just a theory).
Open your phone up and completely dissamble as described here. Completely strip it down so you only have your mainboard. Clearly take all the necessary precautions before hand (backup, etc etc.)
When done, you will see there are blank shields above where the chips will be, if you look, you can see little dimples, you can ease these off here. This will get you into where the omap processor is. You can then put the plastic on top, and make sure it is done as described. Should literally be a case of putting it all together and hoping for the best after that. I will have a look at some point (can't promise when) and see if I can take some photos of where this will go etc.
An alternative would be to try and reflow the joints of solder with a heat gun... very dangerous considering how tight the components are packed in, and overkill.
Click to expand...
Click to collapse
thanks man but i guess am so dumb that am not getting where is this processor located anyways currently my phone is working fine but in few days I'll get the tools & open it...let see than
if you can arrange any pic of processor(where we have to fit plastic) it will be extremely helpful...
anyways thanks for helping
tc

where to get small battery on mother board

Hd2 Non responsive screen fix

a while back i loaded android froyo build (the desire port) and it ran fine for about a month, then the all too common touchscreen fail happened in november while running android.
Llast night out of curiosity i charged it and it booted to the windows 6.5 lock screen and it was still unresponsive. i then pressed the call and end buttons at the same time repeatedly whilst attempting to slide the unlock on the screen and after a few flickers it worked! now it works 100%. the screen later became unresponsive again and i repeated the process and it worked again.
i just would like to know if anyone could try this on their phone to see if we can get all those dead hd2's back to life without costly screen replacements
if this is old news feel free to delete. i have yet to try and reload android on the hd2 as my sd card is in another phone but i will attempt and get back to you guys after its done.
email me at ej2zzz at aim dot com if you have any questions and good luck

Im not sure if this is a "fix" or if there is anything else.
But by hitting those buttons you maby just moved some internal parts a bit so the connect again. Could be a brocken soldering spot or if clip that its not in right....
If it came again in short time it seems to be just a part-time help

dertester123 said:
Im not sure if this is a "fix" or if there is anything else.
But by hitting those buttons you maby just moved some internal parts a bit so the connect again. Could be a brocken soldering spot or if clip that its not in right....
If it came again in short time it seems to be just a part-time help
Click to expand...
Click to collapse
a valid point, but so far it has only happened once more.

i had this same problem 2 weeks ago, beleive it or not the red end button is wearing out it is the most used button on the phone and unfortunately running android you use that button alot more. so in short do what i did and claim it under warrenty. tell them you have done a master reset 4 times in the last 2 days and you are sure that's the problem. got my replacement put in same SD card and booted right up.

The buttons themselves and the mainboard can be changed really easy. The parts dont cost to much money...
Just for the people without warranty anymore, that are sure its the buttons and not a problem that is just solved due to the pressure.

After much to do about the HD2's non responsive screen and after the purchase of a new phone (dummy me), I cleaned all of the fine dust and dirt out from under the rubber switch protectors and the old HD2 now operates as before........great. For my situation, it was sticky (or stuck as it were) switches that was causing the problem. Clean the switch area first.

drifter_59 said:
After much to do about the HD2's non responsive screen and after the purchase of a new phone (dummy me), I cleaned all of the fine dust and dirt out from under the rubber switch protectors and the old HD2 now operates as before........great. For my situation, it was sticky (or stuck as it were) switches that was causing the problem. Clean the switch area first.
Click to expand...
Click to collapse
Hey, hw were u able to clean yours? I've looked @ some videos floating around on how to dismantle my HD2 but it's no pretty sight & i'm scared i'll end up temporarily fixing d touchscreen issue while damaging something else...right now it works but i'd like to clean underneath anyway...
A walk-thru video will be great..Thanks

No word on that walkthrough? Now experiencing similar issue.

this sounds absurd but the same thing happened and it worked. I thought it was with the gingerbread rom but after I tried this, my screen was responsive. Wow, saved me from time consuming backups. In short, IT WORKS!

Is a strange solution, but works. Many thanks to you.

it doesnt work forever ive taken my phone apart 3 times reconnected everything and put back together then it worked! but for 15 minutes and after the first time i took it apart it worked one day now it wont work at all

drifter_59 said:
After much to do about the HD2's non responsive screen and after the purchase of a new phone (dummy me), I cleaned all of the fine dust and dirt out from under the rubber switch protectors and the old HD2 now operates as before........great. For my situation, it was sticky (or stuck as it were) switches that was causing the problem. Clean the switch area first.
Click to expand...
Click to collapse
what's the switch we are talking about?

solucion mientras presionan cualquier boton para desbloquearlo deven soltarlo antes de que aparesca la pantalla de desbloqueo y listo o si esto no le funciona tiene que desarmar el cell y limpiar el teclado.
.

Battery staus randomly change with 5.0.2

Hi to everyone, i bought from internet second-hand Nexus 4 with 5.0.2 but after a couple of day i got a very strange problem:
The battery % randomly change.
I mean, i am normally (but it happen also in standby) using my N4 when it alert to me that the battery is out.
It pass from 40% (or whatever good %) to 4,5 sometimes 1 and then shut down.
Also, i noticed that sometime i can't find "battery" icon in the option menu.
So i try to rebooth the phone but the touchscreen doesn't work and i need to tap with 2,3 or 4 finger.
When i reboot again, it work but they % keep changing, sometime in a bigger number, sometime in a lower number.
I complete wipe and format my N4 and for 2 days works in the best way, the battery keep the load and so on
but then, here we are again.
I got a couple of screenshot of the battery icon missing in the option, of the % changing but it is very hard make a video of this becouse it happen randomly.
Android is 5.0.2 stock, no root, no bootloader
Ofc the guy that sell to me said the phone was perfect, no problem and all the stuff works good.
it the first time it happen to me..
Please help me if you can becouse i really don't know how to behave.
Many many many thanks, Federico.

Is there any noticeable bulge to the battery on the rear of the unit? It sounds like a hardware battery issue.

So, it can be a hardware problem?
Yesterday my battery long last For about 24h...
Maybe a problem in the socket.
I should open the phone (battery is not removibile, so i dont know if there is any bulge)
I dont nave many experience with hardware problemi so i cannot spot them.
I Also should take a look in the hidden menu and take note of the mV.
Sorry for my english..
I try to find the mini torx and open my phone asap.
Thank you!

I replaced my battery the other day while replacing the power button. I didn't have an issue with the battery but figured it couldn't hurt. Turns out the replacement brand new OEM battery built 3 months ago is lasting exactly the same as the original 2 year old battery.
The battery is a really easy job to do though. You could try removing the screw's holding the connector on. They've been known to cause problems for some people.
Sent from my Nexus 4 using XDA Free mobile app

Big Edit!
i finally open the device ( i missing the TR5 Torx!) and i come across in some funny surprise!
First of all, the battery was covered by paper label
Then you can see the antistatic blue tap broken
No glue is present between battery and device
The two little screw on the connector is missing <- may be the major cause?
For sure, the battery was tampered and that may be the cause of my problem.
Just one question: there is a way to understand if the battery is original ?
Special thanks to:

added info

Ah, it does indeed seem like it was tampered with, especially with the defects in the top right corner and such. Unfortunately I don't think there is a way to see whether it is original or not, but now I definitely recommend purchasing a new battery, as well as some of the extra components that seem to be missing.

Thank you for support.
By the way, i found in my office two screw that fit in the hole so i am ok, i can use a little drop of a glue or a particular biadhesive tap for block the battery in the status.. other stuff seems to be ok.

Alright, sounds good.

It looks identical to the original and the oem replacement I put in. Judging by the date it is probably not the original.
Hopefully mine doesn't act up because of leaving the screws out. I only did it because of the number of people claiming it was a fix.
I didn't put any paper on top of mine however. That makes me think the previous owner had an issue they were trying to fix with it.
Sent from my Nexus 4 using XDA Free mobile app

I searched the internet images and looks very similar to the original , in fact when don't show this defect has a great autonomy !
The label,i think it's been done by the past owner to obtain a thickness and hold down the battery in position , you can since it lacks the glue on the back .
The real problem is : may be due to the fact that the missing screws let "move" the connector and generate the defect ?
Moreover, the battery sends a lot of information on the phone , not only the + and - .
even just a little contact property can generate defects .
I Really hope.
I order a new battery and i have some screws taken from old laptops, mobile, maybe i can fit two of them (the first i found was too long)
The boy agreed only to refund the value of the battery ( claimed to know nothing , honestly , I do not believe but that's another story)
Sorry but i don't understand this phrase:
"Hopefully mine doesn't act up because of leaving the screws out. I only did it because of the number of people claiming it was a fix. "
You meant some people leaving the screws away from connector ?
Many thanks to all, Federico.

I mean that when I replaced the battery while I was replacing the power button, I left out the screws because so many people claimed they were too tight and caused the red light of death problem. Since I didn't want that to happen to me I left them out. I did keep them in case I had a problem so o can put them back in but so far everything is working fine.
Sent from my Nexus 4 using XDA Free mobile app

That doesnt sound good for me

Maybe try putting some in again but not too tight.
Sent from my Nexus 4 using XDA Free mobile app

I just pur two screw and hold the battery.
Same behavour.. Hoping is a sort of bug in the battery

Must be. My 2 year old battery lasted just as well as the new one. Held up really well.
Sent from my Nexus 4 using XDA Free mobile app

I hope man next week should be to my home!

Exactly same Problem!
Facing the same problem here. phone blanks off at 40%. Could be because of 5.0.2 as problem appeared around the time I upgraded to 5.0.2. Could be a hardware issue too as I changed the battery myself.
Edit- Loose connector is not a problem as battery charges from 0% after the phone switches off. It is either a problem with the battery or with the battery status sensor.

where is locate the battery status sensor ? in the battery or on the phone ? i try to find something on internet but...
Edit:
Just noticed that my n4 is not complete clear. Files from twrp are inside. I need to totally clear my n4 before keep testing

Well, today update:
First of all, i tried to turn on a lot of "nerdy" stats using the developer menù in order to understand if something of strange happening,but nothing of strange attract my attention.
I also turn on the thing that you can see your tap on display in order to understand is just a software problem, but actually when touchscreen does not respond, doenst respond.
Then i totally wipe my N4 (following a tutorial found on XDA) flashing kernel, radio, bootloader and stock 4.4.4 and that is what i can say:
1. "Battery" in "Options - Device" isnt shown.
Very strtange imho but that make me hopefully, maybe the origin of the problems is located on battery according with what you say.
2. I am unable to boot my N4 pressing Power button! (Actually that happen also with lollipop).
I need to turn on the device passing through fastboot menù, not a big problem but a little bit annoying .
3. Touchscreen seems to work.
Nothing to say
I will test the phone today and tomorrow.
As ever, thank you for all and the support!!
Federico.
EDIT of EDIT
1A. Rotating the device and switching from landscape to portrait battery icon shown in options.
That can be an hardware problem.
It is very hard to replicate but....
---
That must be an hardware issue, becouse tilting my device battery icon (and the orignal problem) shown.
Now i hope that is locate in the battery connector instead of device connector...