Fading Screen - 8125, K-JAM, P4300, MDA Vario General

hi guys i have just bought a used MDA (wizard) and i have a problem, the screen keeps fading to white with vertical lines, if i turn the screen off and on with the power button it comes back fine then does it again after a while, it has been really bad today doing every 20 seconds or so, any ideas ?
thanks in advance

To me it looks like a loose flat cable...
If you're brave enough, and your Warranty time span is over, you could disassembly your Wizard, disconnect and reconnect everything, and see if the problem is solved.
Other than that, your LCD could be damaged (internally) or even some image controller...
Sorry if I can't help you much, as I am no eletronics technician
P/S: google for "Wizard Disassembly", you should find a russian site with detailed PDF showing you, step by step, how to disassembly the Wizard.

Related

Help! Stuck on Align Screen!

Guys, I hope you can help me!
I was using my Imate Jasjar when it was accidentally bumped by another person. the Jasjar fell but it wasn't that high and the floor was carpetted. However, I noticed that whenever i try to tap on the Start button on landscape mode, the calendar application opens up! And when I try to tap V-Bar on the other corner opposite the Start button, the Contacts application opens up. Basically, the soft keys on the bottom screen are the one opening up even if I'm tapping the ones on top! If I tap the bottom soft keys, I thought the Start button or my V-bar would come out but still the Calendar and Contacts applications were the ones that opened. Basically the everything on top cannot be tapped!
On Portrait mode, I can tap the start button but when the V-Bar was tapped it still opens the Contacts application.
I went to Settings then Screen to re-align the screen. I thought it would solve the problem but apparently it didn't! I was trapped in the Align Screen section giving me an endless loop to tap the 5 areas of the screen.
I now did a Hard Reset, and now I'm forever got stucked to the Align Screen part.
What am I supposed to do??? Please help!!!
Hi,
Seen the same problem... Try to guess the error margin of the alignment...
for example instead of tapping in the center of the cross try tapping on left or right... Since your screen isn't aligned you can't press on the center...
Now the problem is hardware, not the MB but the LCD...
After tou figure out the margin error, the Universal will resume and then you ca align the screen via Start->Settings->System, align screen
I'll try to know more about this problem asking my friend.
Best of luck
thanks for your reply!
i also believe that it has something to do with the LCD. there are no cracks whatsoever. problem with the aligning is i have to keep on guessing. and if ever i do align the screen successfully, i'm not sure if re-aligning the screen in Settings would solve the problem.
i would appreciate though if your friend or anybody else can shed light to a solution.
This is a simple problem to solve ;-)
When the allign screen is ON and you have to make the first tap on the crosshair (just before you start clicking away to allign your screen), twist your display from landscape to portrait mode...
Now continue to allign it as usual, and you should finish successfully!
Cheers,
San
unfortunately, after following your instructions, i still went on an endless loop on aligning the screen. i'll try to reflash the rom and see if it would work. i hope it does...
i updated my ROM. still stuck on the alignment screen!
any more ideas?
To be honest, sounds like your screen is broke. Even if you got it to align, I doubt it would be very usable. I think you are looking at repair - if there's no visible sign of damage, you might get away with a warranty repair.
Cheers,
Steve.
Hi
Few months back i've got exactly the same problems (odd LCD behavior, impossible alignment, etc...) with an HP4700. I went to the service center and they had to replace the LCD screen. They did not charge me and take it under warranty. In my case the unit did not drop and i made it clear to them. I would suggest you go back to the service center and forget about the drop in your problem description .
Cheers,
Bruno
I had the same thing happen on a HP 3700, I did not even drop it all i did was install the Quake game for it and after a few days the screen alignment went a bit out. It was usable but definately out by about 1 cm in each direction. The unit had not been dropped. I went into the allign screen utillity and ended up in the infinite loop. The only way to fix was a new screen. But unforunately it was no longer under warranty. The screen consists of 2 separate parts the lcd and the touch screen bit. In my case the lcd had no issues just the touch screen. Very annoying but there you go.
Search your soul and do what you feel comfortable with.
Good luck
Charlie
thanks for all your replies!
i've made several searches yesterday with similar problems (even if they're using different PPC models) and they all ended up sending back their units for repair. there's even one who posted in expansys with the same exact problem!
we'll be sending it back through expansys (we got the unit from them) and hopefully get it back before the end of the month. and yes, i won't tell them that it was dropped, he he :twisted: and they won't find evidence either on the outside because there are no physical damages. what a start of the new year for me <sigh>
right now i'm back using my XDA IIi.
thanks for all your support! this is my first thread/topic in this site and it's so unfortunate that it had to be sort of a negative one. looking forward to be active more here!
Hello there
This might help (I am currently wrking with 200 PDAs so have had this a few times)
THere may be a iece of dust/biscuit crumb etc, under the edge of the casing above the screen, try using a post it note or paper and go around the casing/edge of screen, this should clear the screen of anything that may be causing this problem.
THis worked for me on the majority of non-aligning screens
HTH
DB
My story was, one day when I needed to twist the screen, it was a bit stuck so I twisted a bit harder, yes it went back. Then few days later, the mis-alignment started and since then I have been keeping to do re-alignment my screen.
My screen is mis-aligned once every 2 or 3 days or even few minutes then I have to re-align by using WM5's alignment program. It sometimes takes me 2 or 3 times or even one time.
The most anoying thing is it keeps forget after aligned screen.
Now, certainty, I don't think it is a screen problem because after running alignment app, it correctly pointed into the right spot but then it forgot where the right position was.
I have done the upgraded ROM ( even tried Ivan AKU 3.2 ROM ) but problem still persisted.
I just tried clean up the edge of screen, finger cross, hope it fixes my problem.
Bad thing is, I bought my device from UK and I am living in Australia so therefore, my warranty is definately invalid. I don't want to spend 200 AUD for the new screen ( unless I am 100% sure that LCD is faulty ).
Anyone has any idea or even a better suggestion because I don't see many people having this problem.
I suspects that maybe the flex cable got ripped but not totally ripped. Don't know , please help me out on this one
Best regards
Anyone has any idea about my problem ??
One question :
I know that the flex cable has 2 connectors ( one is for LCD display and another is for LCD function ). Now does LCD function relate to the touch screen function ? and if one tiny wire of the function cable got cracked, but not totally cracked, will it affect the touch screen function ?
Other thing, does WM5 store any setting relating to screen alignment setting ? If yes, where is it ?
Thanks
Hi, from another forum, it only help to bypass the alignement loop:
"here you go theses are simple steps to bypass the touchscreen alignment.
Install you activesyn blah blah blah when it finds it go on my computer and go into your PDA device
go to windows startup and delete the Welcome file
after that give your PPC a soft reset and BAM u by passed the screen now get a free desktop program liek pocket controller from the internet it will automatically install on your pda and BAM you can control your pda add music and whatever
but now if you want to click stuff on the road get pen irazu just search on google and send it to your PDA then go to file explorer and double click it and you got a cute little mouse program that you can use like a stylus"
also try this little soft:
http://www.codefactory.es/downloads/mobile_speak_pocket/release/MSP_RemoteAlignment.zip
Hope it helps.
MaX
Hi godtakeit!
I've had the same problem a few weeks ago (and still having it from time to time) and for me a slight (very careful) bending of the screen makes it work again. It seems to me that there are connector behind or near the display which has some loose contacts.
Did you notice any other problems which came in conjuction with the alignment problem (e.g. speaker not working)?
.ox
Hi oxident
No, I don't have problem with speaker ( it was not working before but it is because of the jack plug problem - it solved ). Yeah, I did notice if I bend the screen carefully, the problem is gone. The funny thing is when I aligned the screen, it worked but if I closed it off and left it over night, it started again when I opened the lid.
You may right about the connector between LCD screen and mainboard. Well, I have no choice but openning the device and check it up.
Also, I read the thread somewhere in this forum and somebody advised this problem maybe relates to magnet around device. My brother aslo advised me that LCD charged and reserved negative electrons. Wierd but I am experiment it at the moment ( taking off battery and leave the device for a few days so that it can release the negative electrons ).
Hope it fixes
please help
i have an imate jas jam that i i got from my father he used it for like 3 years and it is pretty banged up so i cant use the warranty and repairs cost a lot, any who i got it yesterday and it was very slow so i reset the settings and now im stuck on the align screen it keeps going on for ever and ever if any one knows any thing plzzzz help
Welcome aboard
You have one of the best HTC devices ever made!
Have a look here to locate the solution to your prob:
http://forum.xda-developers.com/showthread.php?t=549207
Post number 2
Good luck,

Screen Turns White with stripes

Hello All,
This is the first time I'm posting a message, because this is the first time I'm not able to find the answer via the search.
I have an MDA Vario with a T-Mobile ROM, the latest.
What is happening is that when I use my screen in the portrait position it will turn white with all kind of stripes, then I have to turn it on and off and then I can see the normal screen for a few seconds before it happens again.
I have updated my ROM and no difference.
No I have found out that when I use it in the Landscape mode, with the keyboard unfolded it is not happening. As soon as a fold back the keyboard it happens again.
Can any body tell me how I can get this to go away? I have tried looking for a driver update for the screen or something, but without any luck.
Please help.
Thanks.
Jort.
i'm affraid it is a hardware problem
the same thing happens to me, except quite opposite - when i slide the keyboard out, sometimes screen goes bad. turn off and back on does the trick. also, when the screen is not unfolded completely you can see 'crawling dots' ... i think it has something to do with 'floppy' connector tape (if there is one) or another way the screen is connected with the base of the device. i wouldn't like to disassemble my wizard to verify this claim, unless someone can tell me how to fix it - so that i am sure. anyone has any experience with that?
People at PDA Club say it's connector tape.
Mine Wizard has the same problem, I left it at the shop where I purchased it, for a warranty repair. I hope they'll fix it.
Anyway, I heard that the cost of this repair is about 100PLN [ that is about 25 Euro ]
thanks swistak. unfortunately in my town (eastern poland) there isn't too many people who knows what a pda is, that includes mobile shop, or other service stations workers. but it's good to know there is a way of solving the issue.
Ask people at pdaclub.pl forum for help.
I know that there are few guys who run their repair points, maybe You could send it to them via post.

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

T-Mobile MDA start on a white screen??

I need help...
My T-Mobile MDA can power up but it will just stay on a white screen & after awhile, the backlight time-out & swtiches off.
Tapping the screen or the power button will bring it back on.
All the buttons seem to be responding & the system sound comes on when I press some buttons.
What might be wrong?
Several soft reset will not bring me to the standard screen.
Is it a hardware issue or software issue?
Please advice me what I should do to recover from this situation.
Thanks!
konker
Update:
I finally performed a clean reset & the standard WM5 "tring" sound came on.
At least, the system board is working fine.
But nothing appeared on the screen except for the greyish-white background.
I also brought the MDA into the bootloader mode but I don't see the Tri-colour screen.
What should I do next?
I noticed from the MDA Service Manual that there's a flex board for connecting the screen/front panel buttons to the system board.
Could that be cause of my problem? Or is it the LCD screen giving me problem?
Please, anyone who has experience with this issue, I appreciate any help I can get.
TIA!!
Is your MDA out of warranty? Do you have insurance? If no and I were you I would probably take it apart and check for a loose or bad connection. You got the service manual you should be good to go.
bendog2784 said:
Is your MDA out of warranty? Do you have insurance? If no and I were you I would probably take it apart and check for a loose or bad connection. You got the service manual you should be good to go.
Click to expand...
Click to collapse
bendog2784,
My MDA has no more warranty nor insurance.
I took the plunge & disassembled it.
I made sure all connections are clean & tight before reassembling the unit.
The screen still stayed greyish-white.
This morning, I screen suddenly turned on but for a brief moment.
It seems that when I slide out the screen (or slide out the keyboard), half way through when 2/3 of the k/b is exposed, the screen looks just as it should.
Beyond that it will blank out, kinda like a device having been put to hard reset from an operational state...except that the backlight stays on & then greyish lines start to appear.
So now, I'm not sure if it's the screen that's causing problem or the flex cable.
The flex cables are very hard to find where I'm & very costly too, judging from eBay auction listed.
Would appreciate any help to revive the screen of my MDA.
Thanks!
konker
I got a Replacement LCD for my MDA for $39 at WWW.HTCLCD.COM
belize2004 said:
I got a Replacement LCD for my MDA for $39 at WWW.HTCLCD.COM
Click to expand...
Click to collapse
What happened to your LCD that prompted you to replace it?
Did it crack?
If mine was cracked & there were fragmented display showing through, I would have gotten a replacement LCD with no questions asked.
However, in my case, the LCD is not showing anything other than a greyish white shade no matter what I do to the hardware.
I'm not sure it is a LCD problem as I mentioned above that yesterday, I got it to work for a short period of time at a certain position.
That said, I can get a replacement LCD for my MDA for less than US$25 here.
If it is an intermittent problem (as you described) I'd check the flex cable again.
try to reseat the connector that goes to the LCD (the large one that is locked in place with orange tape and the little brown clip on the connector itself).
help
hi im having the same probs with my vario, have you havd any luck sorting this out?
chrisakak9

What a STRANGE problem with my buttons and LEDs! Ideas?

Hi guys!
Long time no post!
I hope you can help point me in the right direction.
Two things started happening with my 8525 TyTN, rendering it unusable. I do have a backup one, so it's no panic. But I would LOVE to try to repair this.
Here's what happens!
1 - The two LEDs in front don't work! No green; no blue; no amber. (HOWEVER, When I first replaced the battery after a hard reset, I did see is glow red for a second!)
2 - None of the buttons on the front work! None. Start/End, the D-pad, mail, internet explorer. All dead!
Interestingly enough... the LCD screen is perfect, as is the touch screen.
The unit also works perfectly fine.
I did a Hard Reset.
I am using WM6.0.
I am wondering... PERHAPS there is some kind of ZIF cable that goes from the body to the top panel? MAYBE that came loose?
If you have seen inside your TyTN, is there one cable/ribbon for lights/buttons?
If so, that would explain it!
If there are two cables/ribbons.... one for lights, one for buttons, then the odds of them BOTH falling out are near impossible!
I would LOVE to hear any ideas or thoughts!!!
Thanks as always!!!!!
Mike
Hello and welcome to a new phone!
I have a similar problem, mine sometimes gets a white screen and the D-pad buttons rarely work for long.
It is quite possibly a loose ribbon cable.
There is actually a thread here about this issue - just do a search for 'white screen' or similar and you'll find it. It was posted to within the week so shouldn't be far from the top if you browse for it, but I can't remember which Herme's category it was in.
There's even a full guide with pics to pulling your 8525 apart!
Cheers! Oggy. ó¿ó
try a new rom,.
I have the same problem. I thought it was bcs my TyTN fell down once. It started with Iexplorer always popping up when I wanted to do something. I thought the IE button at the top was stuck or something and when I pressed hard on the message button everything was okay. All buttons worked. But after a few days they stopped working and pushing the message button wont work also. And both the red and green call button leds are always shining. It sometimes happens that the dpad works for a second and than nothing.
I used the original wm5 and flashed to 6.1 now, no change tho.
it's not the rom, tried several roms now
for me it's just the call answer button, but this is annoying enough
there are some topics in the hermes section which describe the problems you encounter or even worse problems (the lcd flickering or just giving you a bright shining white) and they all say it is a loose cable connector right under your dpad
some of them opened their tytn (guarante already gone) and put some sort of paper or rubber or sth else on the connector.
other say tighten or loosen the screews worked for them, but none of the solutions seem to be final, it always works for some time.
if you have still guarantee i would try sending back or try somewhere else a repair, that is what i will do with tytn
i hope i do not have to pay for the repair
good luck
Loose screw
I was able to fix this problem after ATT told me that I was out of warrenty and it was going to cost 499.00 for a new phone.
I it turn out it is a loose screw on the inside and to get to it you have to undue 11 screw to get to it. I might be able to fix it for you. I dought you would be able to get into this phone and not hurt any of the other functions.
Rick
Hi,
could you advise how you managed to fix it?
Thanks.
button failure and white screen
I have the same problems, if I turn off and on for 3/4 times everything back to normal. But is really annoying because I miss calls.
To me seems a software issue.... I can solve it by turning off the screen does not make sense hardware problems
have a look to this post:
http://forum.xda-developers.com/showthread.php?t=435281
I have still to test the suggestion of schaps advance config version 2.02.1.0.0
Sorry it not a software issue and you can flash a 100 roms and it still won't work. You simply have a bad flex cable and possibly a defective dpad circuit board. You have to crack open the phone to replace it and it has to be carefully done. There are tons of DIY's about opening the phone and replacing the cable. There are even YouTube Videos about it.

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