Phone Not Starting only giving White Screen - 8525, TyTN, MDA Vario II, JasJam General

Dear All,
My phone fell in a water bowl, I picked it up and quickly took out the battery.
After sometime I dried my phone and inserted back the battery and turned the phone ON and its not starting it is only giving me White Screen.
As far as I think , the software is currupted. I think i will have to re-install my ROM
what do I do ? please help me with this.
Thanks.....
Raheel.

Ok,
I just started the phone again, it is now starting well, the Signal light is also blinking and the keyboard sensor is also working.
but the screen is still WHITE.
It is giving me white screen still. please help me with this...i have read other posts people say that the white screen appears when the cable is damaged ,but my cable is not damaged at all, it was all working fine untill i dipped it into the water.
one more observation, when i keep the phone on for about 2 minutes, some part of the screen becomes Black , while the rest is white.

Please please please help me ..................

It may have been fine before the water bowl incident, but it does not take much to upset the connection between D/Pad and screen.
Just a little moisture on the d/pad or on the contacts of the d/pad connector is enough to create a poor connection and that dampness can also start oxidisation of contacts all over the place.
You might be lucky in that if you leave it lying around for long enough in a dry atmosphere , one day it might start working ok. Otherwise it will need dismantling and cleaning of the d/pad board and disconnection, cleaning and reconnection of the connector.
Mike

Well, I can give you some advise. Just Try returning the Hermes to Stock Firmware, or Windows Mobile 6. If that doesn't work, i recommend just buying a used unlocked Hermes off ebay. You can get one for no more than $200

Related

XDA2 fell in water Please help!!!!

i ve a xda2 it fell in water and after that i got it dried n cleansed from a dealer but now the problem is that it only works upto the "align screen" intial setup and downt move any further i also tried to ugrade with WM5 bt same thing, Please help me. I shall be thankfull to all to you.
Kindly help
Hi,
try to clean board with isopropyl alcohol or in ultrasonic cleaner. Maybe it can help you.
jsec
Is it really dry? It can take some time...
See this:
http://forum.xda-developers.com/viewtopic.php?t=22275&highlight=
Andre
Replace the battery
I had the same problem after my mda ii went through the washing machine. Replacing the battery fixed the problem.
thanks guys for the replies , further my XDA had been properly dried and cleaned but now the problem is that the machine doesnt operate further than the "ALIGN SCREEN" setup where one has to tap the screen at four corners and the center one I tap the screen i return to the same screen as ask to tap the screen again.
Will flashing the rom serve any purpose or is it aa hardware problem, rest of the device seem to be ok even the bluetooth light flashes when i turn the XDA ok. But not able to get i any further from there.
So what do the experts have to say, Please reply.
thanks again
well, mine had very hot coffee poured all over it.
my suggestion to you would be, dont turn it on or place the battery for at least 3 days if under normal drying conditions only.
or if you know how to take it apart, spray everything with contact cleaner, it will dry up immediately,
then cross your fingers and hope nothing shorted out when it first went inot the water.
strategy is - wait - dry- wait - test - dry some more - spray contact cleaner - dry - test - until such time it works. coz some moisture might still be present and causing a little bit of short circuit.
It sounds more of a hardware issue than a software issue and you may have to take is apart to fix it.
Try two things, Number 1: (You need to use some latex or vinyl gloves if you need to take your unit apart). You are going to need to check your digitizer connection to the motherbaord, make sure you don't have any mosture trapped in the ribbon lock and make sure the entire front part of the digitizer is flush against the inside case edge. Number 2: Have you seperated the digitizer from the LCD yet? If this thing was in water the slightest spot of moisture will disrupt the very small electrical field between the digitizer and the LCD that recognizes the stylus taps. Abosolutly nothing should be present between the two and also around the white or grey strip on the inside of the digitizer for it is also a contact strip. You can use a lens cleaning cloth to clean any dust and moisture from the inside of the digitizer before you put it back together with the LCD. Being I worked on about 150 toshiba e750's that suffered sprinker damage in a fire, I learned quite bit on what makes a Pocket PC tick. Good luck with getting it working.
the same
I had the same problem 3 or 4 years ago with a HP Jornada 680 (handledPC). I must unfortunately say that I could never get my touchscreen working back again. Perhaps if you could change your screen for a new one, or at least one that always worked (some are sold around the www, even a few by members here if i remember).
Good luck
Shane
the stylus is working as the sceen responds to the tabs, but the process of calibarating the screen doesnt finish and keeps on repeating. and it asks to align the screen again.
The digitiser is working but the software doesnt seem to be working...
what do you have to say?
and thanks for the reply
guys thanks for the reply
but no luck... is there any sofware that can check if the components are working and ok, or simply what should i do. The info about the problem in a nut shell is
First the loading happpens with the O2 screen then the "Windows mobile screen says Tap the screen to setup the pocket pc" Then when i tap the screen next screen comes saying "ALIGN SCREEN" with a crosshair in the middle of the screen when i tap it with the stylus it moves till all four corners are tapped which crosshair point to. But now the problem begins.
The same screen repeats and asks for the same procedure again and again and again And the Xda processing doesnt move further.
i even flashed the ROM but same thing........
no luck
HELLLLLLLLLLLPPPPPPPP!!!!!!
REPLACE THE BATTERY
Have you bought a new battery yet?
Like I said above, my MDAII went through the wash. Just like you, i got the align screen process followed by a spontaneous hard reset. I bought a new battery, charged it up in the cradle overnight, then popped it into my machine. Good as new.
Don't mess with the software until you try a brand new battery.
Cheap and effective.
Hmm, the touch screen is responding to taps, but maybe its a bit 'offset'.. I mean maybe when you tap exactly center, it will receive your tap to be a lot more offset to right, left, up or, down.. Cos that's what making the 'align screen' asks you to realign again and again..
Hi Tanvir,
I want some of the others to advise on what I am suggeting. On my xda I ( which I own as well as a Blue Angel) we are able to put it into boot mode and press the "action" or was it the "contact" button to get it into test mode. Being I don't own a Himalaya but I would guess that they would have that function too, and in that function it has a test for the aligment screen which it might be able to align in the test mode away from the OS running. If someone has the tip for helping Tanvir of getting his unit in to test mode, Please someone post it for him. Also being I don't own the XDA 2 if anyone has anything to add on my suggestions, the floor is open. let me know how it's going Tanvir. Cheers.
Shane
I'm sure Tanvir's digitizer is no more...
Go to www.ppctechs.com and purchase a new one... not that expensive!
Good luck!
Rayan
Hi shane,
thanks for the help and time i ll try the process u suggested and lets see what happens, i ll inform you if any luck,
An thanks to all the guys for helping,
Thanks
Tanvir
hi jamil
ive guessed that posibility too, but the question is there is no way to fid out if it s he reason...
thanks
tanvir

screen just shows lines

anyone know how/where to get an xda mini II repaired? i'm in italy, but i can careless where it has to go. I'm at the point where i would rather just sell the device for it's workable parts (if there are any)...Today the screen has done a myraid of interesting things...anywhere from blank to thousands of vertical lines....ugh...
ohh yeah...warranty is void....or is time to just move on?
ok...no answers so i thought i would add some images ...anyone seen this before?
Mate i had a similar **** up a while back ...I did a HR and it worked fine..for me it was caused by a Overclocking software [Dnt want to Name it ]
If this dnt work try the Batt out and back in trick
Call ur Local service Center...
mine looks exactly teh same! but it happened after i tried to replace my housing, i screwed up the little gold prongs where the ribbon connector from the lcd plugs in...****! any ideas on how to fix? im the us so service center isnt really an option, and id ont want to send it off.
hi i had the same problem with my magicians, after i changed the housing. i found the problem with my device was that i had not plugged the screen back in properly. all i did was to ensure that it was pushed in properly before i clipped it back in
Menappi -
I had the exact same issue. I reopened the casing WITHOUT disconnecting any cables. I flipped the screen's ribbon black lock up, while maintaining pressure on the ribbon so that it does not pop out. When the black lock lifted, the preasure of my finger moved the ribbon further in . I pushed the black lock down, reassembled the device and ... PRESTO!! the screen works perfectly... and chumps on the bard advised to buy a new screen!!
Good luck
Hi All,
seems, you have problem somewhere in display connector. However, sometimes I see similar picture on physically broken displays, let's imagine, you were careful ad didn't use a hammer during housing replacement.
There are two possibilities: at first - try to remove and re-insert display cable (I hope, you know. how brown lock works). If there is no success - try again. At second - some wire on flat cable may be damaged. Sometimes, good technician with soldering iron can fix it, sometimes not. And if you used force, removing cable, board connector may be damaged too. However, only the experienced man can find it easily.
So, try to carefuly re-insert display cable. Try several times. If you are unsuccessful, you, for sure, need an experienced technician to fix your device.
I hope, you are not enough mad to send device for repair to Russia

8525 White Screen of Death - Is there Hope?

Ok so I have the fabled white screen issue on an 8525. When it first occurred I searched and read all the write ups, decided I had the ribbon cable issue. Took it apart and simply unplugged and replugged the ribbon cable with great results, no more white screen.
I repeated once when it came back after being bumped around, again with positive results...but this last(3rd)time instead of it working I now get white screen 95% of the time. I re-notched the sliders the first time, and last time.
During the 5% it works I noticed the charge light would correspond to it going white.This never happened before...
Example:
When OFF - Connect charger, Red light for 1 second, then nothing=White screen from power on
When OFF - Connect charger, Red light for 1 second, then orange charge indicator = normal startup
When ON and Working - Connect charger, no light, no charge - reboots to white screen
When ON and Working - Connect charger, orange charge indicator, reboots normally.
There is no heat or noticeable pressure on any parts, everything seems to fit normally.
It does boot normally with screen white.
Any ideas? I really don't want to give up on this thing, is there any hope? or just ebay it for parts?
Thanks
-Nick
same problems here, if someone could just tell me what parts to order, cause I have no warranty (ordered over ebay). I tried both the instruction that has chinese fonts on the page , and other from R&R, no luck, white screen all the way..
I had the WSOD and took it apart and reassembled a few time. The 3rd or 4th time the screem came back, but now it is shifter to the right around 1/4" or so. I mean there is just white along the left edge, then the normal screen/color starts and is cut off on the right.
Does anyone know how to correct that, is it related to the same flex cable or is there something else I disturbed?
mine will fade to white.. then i just push the power to put it in standby, then push power again to wake it back up and back to normal.. it rarely does it but still annoying...
If You Ordered From At&t
I had this problem about 2 weeks ago!!!!
I thought it was a fluke!
Anyway, walked over to 43rd and Lexington (NYC FOR THOSE WHO DON'T KNOW THAT MANHATTAN IS THE CENTER OF THE WORLD)
and they gave me the EXCHANGE HOTLINE for at&t.
I called them up, told them my screen is fading to WHITE and the lady sent me a new or referbished phone.. i dont even know.
Just so you know, i ordered my phone on AMAZON with a new activation. its covered under the MANUFACTURERS warentee for a full year from the date of purchase... so is the REPLACEMENT PHONE... but not from the date of replacement, just the date of purchase.
did anyone get deeper into this yet? I got a 8500 (need those without camera) from ebay USA, already with white screen. After reading here, that this is mostly an issue with connectors, I bought it, disassembled it and reassembled it, though still white. Should I give the contacts a treatment with contact-spray? (there's a tuner spray that doesn't leave residues) Or is there something broken within the ribbon cables? Seller said it has been dropped (but he also said, he didn't want to open it, while it clearly has been opened, one screw missing and warranty seal gone). It ssems to boot up normal otherwise, I hear a sound after the boot process, so probably this isn't a software issue?
Edit: another thing I noticed: When I run it without any keyboard connected at all, it's also white. I then connected the dpad again, and I could see a hint of the at&t logo in the lower part of the screen. When I pressed around on the back of the dpad a bit, all LEDs would go on/off... Sound to me like the dpad has gone bad, possible?
Edit II: Got it. Using a 20x eyeloupe I found that the PCB of the DPad is broken under the little chip on it. Now I just gotta find a dpad here in germany, but I assume those Hermes' are all equal...
hello
where can I get manual (if there is one) for disassembling hermes. link in wiki does not work.
thanks
this worked good for me
http://inuchanbt.blog54.fc2.com/blog-entry-100.html
Anyone know if this applies to the 8125 as well? I've got a flickering white screen. I had dropped my phone a few weeks back and cracked the LCD. Replaced it with an OEM LCD - it worked fine for about 2 weeks and then just suddenly went all white. Phone still works, I can still get calls - just can't see who is calling.
I don't recall that the wizard had the same problem... Though from a logical point, it seems that there is an issue behind white screens and the thumbpad being responsible for it, so it may well be the same thing. Perhaps just disassemble the wizard (there should be a howto too) and check if theres a similar connection from mainboard to thumbpad circuit.
Is there a disassembling manual for a imate k-jam that anyone knows about?
Here's a website with a video manual i found useful...
http://viralelectronics.com/category/howto/page/2/
Figured out the problem...
The only reason I figured out the screen goes blank is because the motherboard loses connection with the screen when you slide the keyboard out...try this out and see if the screen comes back...
put the screen on sleep mode (no white screen)...then slide out the keyboard and tilt it a little hard after pressing on the screen and put the power on. if it doesnt work try again it might take some pressure and power to make it work...be careful not to put too much power but as far as I went, it's a very sturdy cell.
alternately, slide out the keyboard in sleep mode, and press all the buttons really hard and then try to press the power button (press more towards the space bar because that helps)...if any of this works and the screen comes back on even just for a second...follow the following
Go back to the person who gave the link to the site with opening the HTC instructions and follow through and clean the whole phone up from dirt around the screen and such...you dont need to put those rubber things or whatever it says to put on the screen...then when you are putting it back together, press hard on the wire connecting the touch screen to the motherboard. I suggest sealing it with a good tape...and then you are good to go! I did it but it had a few glitches...the screens contrast sometimes goes awry but it is still visible and responds to touch. Also, the physical buttons work as well!!
Good Luck and do it at your on risk.
Have any of you tried this? http://forum.xda-developers.com/showthread.php?t=321163
hope the best
i tried this and it worked for me. i also pressed alil hard around the d-pad and heard a pop. i think it poped back into place.
thanks
razor rc said:
i tried this and it worked for me. i also pressed alil hard around the d-pad and heard a pop. i think it poped back into place.
thanks
Click to expand...
Click to collapse
i still have this problem.
fixed my wsod
I noticed a few days ago my 8525 screen went white, rebooted and it went away. Today it came back, but would only go away for a few seconds and then back to white. After reading some forums I decided to check the connector. I took the phone apart following this site as a guide. I removed the connector on the board side and cleaned the contacts with a qtip and denatured alcohol. Phone has been perfect for the last few hours, no more white screen of death. I didn't mess with the connector on the LCD side, just the board side. I'm a computer tech and I found it quite annoying to disassemble, but I managed without causing any damage, however, I'd rate the job at about a 8/10 as far as technical ability.
Joey
warped0202 said:
I noticed a few days ago my 8525 screen went white, rebooted and it went away. Today it came back, but would only go away for a few seconds and then back to white. After reading some forums I decided to check the connector. I took the phone apart following this site as a guide. I removed the connector on the board side and cleaned the contacts with a qtip and denatured alcohol. Phone has been perfect for the last few hours, no more white screen of death. I didn't mess with the connector on the LCD side, just the board side. I'm a computer tech and I found it quite annoying to disassemble, but I managed without causing any damage, however, I'd rate the job at about a 8/10 as far as technical ability.
Joey
Click to expand...
Click to collapse
i agree that this is one of the first things to try in curing the white screen issue. Others may find their problem runs a little deeper and the contacts on the d/pad chip are broken. An improvised cure which may not be very permanent is to place a little padding on the surface of the chip as described here:
http://forum.xda-developers.com/showthread.php?t=321163
If you have appropriate heat gun equipment you can re-flow the solder on the d/pad daughter board - but remember to remove the sticky key pad layer or you'll cook it!!
I regret that I'm closing this thread because we have several "White Screen" threads and the questions and answers are being spread all over the place.
Please use this one for future posts:
http://forum.xda-developers.com/showthread.php?t=321163
Mike

X1 Ribbon cable - what happens and a fix I came up with!

Hi, I come on here quite a lot for information as it's an amazing resource! This time however, I'm attempting to give something back!
I experienced the "black screen on slide out" on Monday. Phone completely screwed. I've also had a few droppages and had it apart once before so there's no way warranty is gonna help!
I stripped it down and soon discovered what it is that actually fails on the ribbon. The coating had worn through due to rubbing on something during the slide out / in process. it had been playing up for a while, probably due to shorting out on the metal case, but now the tracks (aluminium?) had worn right down.....
In pic 1 i've circled the worn area. The shiny section is where i'd tried taping over it to prevent shorting, before i realised the tracks were gone.
Got an almost new one off ebay for 15 quid and, realising it was going to happen again, came up with a solution that, so far, looks like it will work....
A while back I bought some "anti rattle felt" for my car's dashboard - really thin and strong self adhesive felt to prevent squeaking joins between dash sections. I cut a piece of this and stuck it to the new ribbon. Once this stuff is on it's well stuck, by the way!
See pic 2 for the modded ribbon cable.
On reassembly everything is working just fine so far! Here's hoping that it lasts longer than 6 months this time!
Just need a new casing now as mine is decidedly second hand!
Hope this turns out to be of use to someone!
cool story bro
when i took apart my xperia to replace the housing this seemed like a really weak point in the device. glad to see someone who has had the problem has been able to fix it
Why does the screen go black?
Hi,
When the coating wears off the ribbon cable it exposes the tracks in it. when you slide the keyboard out the exposed tracks short out on the metal casing and the screen loses it's input signal.
thats whats happened on mine at least and i presume quite a few others?
HTH!
Update:
That's interesting: My phone was also losing signal with the keyboard out, and occasionally while closed up as well. It would just randomly drop to "no signal" for a few seconds.
It hasn't done it since replacing the ribbon cable.....could be coincidental of course.
I'm having the same problem
It just started a week ago and I got the phone in January off of ebay. I'm new to opening up the phone so could anyone help me find the correct tools or have a link to a site with pictured instructions?
I noticed that the sliding mechanism started to go loose about 4-5 months ago but didn't expect the screen not respond in landscape mode. I have yet to see the other symptoms you all are referring to. I would like to fix this before it get worse.
In mine case it went totaly black after one week of this problem... You have all the instruction on youtube, there is where i looked. For tools you can be inovative, but the exactly right ones come with housings from ebay, it is only 15EUR, and i bet you have some cracks so it wouldn't hurt replacing. That is what i did, along with ordering new sliding mechanizm, and new ribbon cable.
I am open for ideas to prevent my ribbon cable from being cut at it weakest point again.
I'm assuming my flex ribbon went bad yesterday, since sliding the keypad out causes my screen to shut off.
Already ordered a cable off ebay and will attempt to replace it myself :O
Replaced my flex ribbon cable with one I bought on eBay. The screen doesn't turn on at all now, which leads me to believe the cable I was sent is defective. Put the old one back in and it works okay, less landscape mode. ughhh what a pain.
great tips! my input is I bought a case off of ebay that was ~60$ and everything actually fit fine for me...so I wouldn't discount every seller but you do get what you pay for, the 15$ cases are probablly the ones that will give you problems
I working in a mobilephone repair center if anyone need help drop me a priv... i able to get 2nd hand or even brand new components
Replaced the flex ribbon cable -
I got my flex ribbon cable a few weeks ago and took it to my local repair shop. They replaced it but the LCD screen/optical joystick receives no power. The touchscreen and everything else on the phone works just fine now. I thought it was a defective item so it was exchanged with a new one.
Got the repair shop to replace it again and the outcome still remains the same as the first.
Theres no light coming from the screen nor the side illumination.
I just told the repair shop to just place the original back in for the mean time.
Before the repairs, there would be a flicker of white light and random illuminations. Now there's no lights at all except the power botton.
Could it be defective a batch that the seller was sending out? or the repair shop's mistake and is playing dumb so they do not have to admint fault?
Hopefully there's an easy fix to this problem.
-Also I did inspect the ribbon before and after the repair. looks new as the OEm
Can anybody help me out with this new problem after replacing the cable -
perhaps you should try a hard reset. Ive had problems in the past where the optical joystick and the illuminators did not work, and that worked for me.
On the other hand, the top illuminators are on the same piece of hardware as the flex cable that was replaced, so a faulty flex cable is possible. The bottom illuminators are on the circuit board that the optical joystick attaches to, separate but connected to the flex cable.
Ive recently replaced my flex cable and touchscreen. The experience i had with the faulty touch screen was that it appeared to receive no power, but was in fact displaying a dark backlit illumination that could only be seen in the dark. At the same time however, the screen did not display anything. I'm not sure if this is similar to your experience, but if so then your touchscreen would need to be replaced.
ive done all repairs on the xperia myself, and one thing ive discovered is if something doesnt work right after a repair, simply disassembling it and reassembling it to make sure all the connections are properly done has worked for me in the past.
"Before the repairs, there would be a flicker of white light and random illuminations. Now there's no lights at all except the power button."
Now when you say the power button, do you mean that a red light appears under it?
I dont know if i can come to a conclusion or that i can help (or have helped) you come to a conclusion, but i can only assure you that the xperia acts out in strange and weird ways.
Good Luck!
Tags
Dismantle / Disassemble Sony Ericson Xperia X1
http://www.ifixit.com/Teardown/Sony-Ericsson-XPERIA-X1/788/1
http://www.formymobile.co.uk/xperiadisassembly.php
http://www.youtube.com/watch?v=AWDurQrRt-Y (REAR)
http://www.youtube.com/watch?v=iyGUbxFqvyc&feature=related (FRONT)
http://www.youtube.com/watch?v=elgC8hwHfYQ&feature=related
For info.
Mike
Thanks for the links. I've tried the hardreset and restoring the original rom but the issue is still there. It's really bugging me that everything works but the LCD screen. I'm currently using MyMobiler to use my phone. The touch screen works fine and so does the soft keys. Just no power for the lights. I might just give up and wait for another phone that catches my eye and then tinker with the xperia myself. but if anyone got a solution or want me to test something then I'll give it a try.
My warranty is no longer affective so I'll use my phone as a tester to help others with any problems.
TRIONDAVE, how's your Xperia running now with the cable mod that you did? Its been 6 months since you created the thread. I hope you're still around.
My Xperia X1 works nearly fine, except for the keyboard issues, so I'm thinking of opening it up. If your Ribbon mod helped I might just do it too once I've got it opened. Mine has a MOUNTain of cracks though, and the battery compartment itself is cracked on both side enough to make the compartment CURVED. Hence the Battery cover doesn't sit well.
I'm looking around for broken Xperias which I might be able to use to change the internal cracked casing. Lets see.
DatDereX1 said:
cool story bro
Click to expand...
Click to collapse
My thoughts exactly.
Hello guys, I am in need of real help over here!
Its just that Ive replaced my ribbon cable, the old one got screwd up.
However I got done for 10 minutes ago, tried to start up the phone.. without success :,(
The ribbon cable doesnt have anything to do with the start up, only the screen am I correct? Cause I cannot even start my phone..
Ive connected the charger, but when I remove the battery it shows a red light, meaning no battery, correct?
So what may the problem be exactly? Maybe the battery is all dead, or?
PLEASE HELP!
for the people with ribbon failures how long have you had the phone before it occurred ? im just interested on the cables lifespan.
mine is fine so far but i have noticed the slider is flimsy and rocks left and right.

HERM200 front buttons + Strange behaviour

Hello guys,
All of a sudden yesterday my phone started acting strangely.
1. all front buttons are not working.
2. Green/Red buttons are always with lights on.
3. Phone works too slowly sometimes.
4. Green light that blinks usually does not blink all the time.
5. Camera does not start.
I tried with hard reset too. The phone is not with original ROM. It is now 6.1 but it was working fine for more than 2 years.
Please advice.
Cheers
Yasen
Gorbachov said:
Hello guys,
All of a sudden yesterday my phone started acting strangely.
1. all front buttons are not working.
2. Green/Red buttons are always with lights on.
3. Phone works too slowly sometimes.
4. Green light that blinks usually does not blink all the time.
5. Camera does not start.
I tried with hard reset too. The phone is not with original ROM. It is now 6.1 but it was working fine for more than 2 years.
Please advice.
Cheers
Yasen
Click to expand...
Click to collapse
Did you get mosture / liquid into the d/pad board under the buttons ?
Mike
Hi Mike,
I am pretty sure that this is not the case. I don't remember such event. Also i havent drop my phone recently to the floor or something. It is really strange.
Cheers,
Yasen
Something more...it seems that the screen is not aligned properly. Also when I plug in the phone to the wall charger the orange lamp is not on but the phone charge properly.
So far everything speaks of a hardware problem I'd suggest you take your device to a service shop - unless you are a skilled in soldering etc., this is something you won't be able to fix at home.
i have the same problem too
Indeed it could be the connector between screen and d/pad daughter board as this is also integral to the digitizer that controls the alignment.
It could also be one of the other internal flex cables or the chip on the d/pad daughter board that is known for delicate solder joints.
Mike
I think I will take a part the phone and clean all contact points.
I will write later when I am ready.
Cheers
Yasen
Taking the phone apart did not help
There was quite dirt inside. I have cleaned it carefully. All connectors look okey to me.
On other hand the phone acts differntly every day.
One day the red/green pad is with lights on, other day only the Charging lights is on.
Any sugestions?
Cheers
Yasen
Looks like a broken flex cable or soldering... it might be not something easily detectable with a naked eye. Take a good magnifying glass and carefully examine the flex cables for any cracks, as well as the state of soldering joints, especially in places where the flex cables connect to the mother/daughter boards as well as on the D-Pad board (which receives most mechanical pressure).
If you dare to, turn on the phone while it is taken apart and try to VERY CAREFULLY "swing" the cables with a non-conductive tool to see if it has any effect. Aslo try to apply a bit of pressure (again, VERY CAREFULLY to avoid any damage) to different areas of the boards itself to locate the most probable area where the defective joint might reside.
But, again, unless you're skilled in electronics hardware repairs, the best you can do at home is identifying a potential problem.

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