Database Users

Screen stopped working, only backlight after trying to fix vibrate

So I tried to do this: http://forum.xda-developers.com/showthread.php?t=376035
My screw was loose indeed. In fact is was so loose it fell out before I had opened it completely.
I tightened the screw, closed the cover, turned it on, and... nothing. Only the backlight of the screen, but the screen stays completely BLACK. Nothing. (I know the phone is working though, because if I hold the off button I'll hear the "boink" sound)
I tried this:
- With and without SIM card.
- With and without tightening the screw.
- With and without the power cord.
Mind you I have NEVER had this problem before.
What is going on here? Did I **** something up badly while opening this phone? If I did I am going to be super sad, so please, help me!

Anyone?

I basically have the same fault mate. My vibrator lock screw was loose and it made the phone rattle.
I opened it up and probably either tightened the screw up too much and killed something on the mainboard or 'pinched' the lcd flex ribbon ( rusty gold coloured thing- it plugs into the small white ribbon connector on the MB ) with the opening tool.
Anyway - the phone could take calls , it seems to be working ,although I have no display , and the keypad buttons are all lit up very brightly , what scuppered me was with the constant case opening I eventually managed to break the power microswitch off the MB and I now have to use the reset button to power the phone on.
I don't want to waste money buying a new lcd screen for a phone which might be terminally damaged due to a mainboard fault , anyone narrow these faults down more ?.

shameless bump.
BUMP !!

Im just fixing my LCD on my P3600 and have it in bits,
is the display connector definitely pushed all the way in?

Yeah m8 - AFAIK it is all the way in , I am certain that it is the flex ribbon connector that is broken.
For anyone else interested in this or that has the same problem - there is a program called ' my mobiler ' which can be found in the forum somewhere , using it will tell you all you need to know ;
i.e = if it is the phone itself that's broken , or it's a damaged display.

Tytn white screen

Hi,
my tytn suffers from white screen.
it was on repair under waranty two times, last time that thay returnet my phone i checked it and put it on a shelf. it was there for a year or so.
I needed it so i power it up and guess, it is white screen again !!!!
Now i took it apart and i found that service under waranty putted some foam on dpad chip
I tryied : resolder chip, resolder dpad conector, main connector and cleaned everything and put it together and always i get same result :
firt time power on screen is working, and it stays working for as long it takes. After power off and power on screen is white and only thing that helps is colding phone in freezer, and than screen comes on power on and it stays.
hope that these can help someone to better understand white screen isuse and hopefully i can get some help what could it be ?
thank you
davor

[Q] Incorrect Error Diagnosis at HTC Repair Centre

Hi,
I had the following problem with my HTC Diamond 2 (it might have got wet & it might possibly have had too much pressure on the screen)
Problem:
The mobile boots ok and the normal buttons at the bottom work fine, as do the volume up/down buttons. The display, however, has what looks like the newton rings and when I press the display it detects a 'press' about 1cm to the left of where i pressed. This means I can't use the right hand side of the display and also can't enter my pin.
Error Diagnosis: (from Arvato Services in Germany)
Mainboard is defect. Cost to repair = € 303.17
Is this possible ? If there was a problem with the mainboard then I would expect to see other problems - and at present, I can only see that the touchscreen has a problem.
Please let me know what you think, thanks in advance !
(ps there should be a question mark at the end of the 'title', don't seem to be able to edit though)

Based on your description and from what I've read, it's definitely the digitizer.
It is possible that you have a damaged board, but regardless, your digitizer is bad.
I would attempt to replace this yourrself then see if everything is fine before sending it to repair.

I had the same problem!
The screen was getting worse in alignment over a time frame of a couple of days. If replaced the digitizer and screen and all is back to normal ..... however it seems to work better then ever before.
The only problem left is dust between the digitizer and my screen, but this is my own fault since I didn't glued the screens. I'll re-open in the next few days and use some silicone to close the gaps. Mainly the volume key has an opening to the outside.
Good luck with the replacement!

[Q] Strange screen Problem HD2

Hi guys, first post. So heres the problem. My HD2 screen is not glued properly to the base of the phone and it has a little space between them at the bottom right corner ( next to the Power button), whenever i press the screen to close the gap the phone freezes, and i have to remove the batery. It is getting really annoying couse i cant even put the damn thing in my pocket without it freezing. The hardware keys dont even work i just have to restart it. So my question is does any1 know of this problem and can he/she offer a way out?
Sorry for my english. thanks in advance

Sounds like it been opened before & had not the best assembly.
Would imagine hardware button ribbon is torn or pulled out of socket hence no buttons.
freezing issue could be down to issue with digitizer ribbon or button ribbon or worse ?
Do you have any issues with screen touch & do you know full history of the handset.
If black Void sticker is missing from case screw near battery pins then you know it been opened & most repairs including so called specialists are poor from ones I've seen.

I know this is the last thing you want to hear but if it were my device I'd take it apart and redo the assembly myself. Theres plenty of how-to videos with detailed steps. Hope this helps.
Sent from my SGH-T889 using xda app-developers app

[Q] New screen not working after replacement

Hi all,
I had a touchscreen issue (sometimes not working) in my HD2 so I ordered a new fabric screen+lcd assemby. I replaced it very carefully but now when I plug new lcd it is not working. Phone is working, buttons, vibration, hear the sound when turning on but there is only backlight on display and just shows black screen. I am sure that display is ok because I tried to put old one (wich was still working before replacement) and it has same issue (backlight works but display is black). Can you give me some ideas what is wrong ????

damaged lcd ribbon connector on mainboard or ribbon not being inserted fully or latched securely
Ty booting to bootloader ...

Help
The flex cable is not attached correctly or the main board is broken and before you close your phone try it. If you can't do this give someone your phone and he will recover for you.

The problem is sloved. I dissasambled all phone and fix it once again and now it works. Anyway I got another problem of white screen on my second device. Did anybody find a solution for white screen ever????

wojcimierz said:
The problem is sloved. I dissasambled all phone and fix it once again and now it works. Anyway I got another problem of white screen on my second device. Did anybody find a solution for white screen ever????
Click to expand...
Click to collapse
Have you tried turning phone on with volume down button pressed???
You should see 4 colors. Try this. I search for you.
http://forum.xda-developers.com/showthread.php?t=2263026
try with this link.

Yes I have read this before but I think that white screen problem is not sloved in this thread. But maybe I could be wrong.