Hi,
I am still trying to resolve an on going screen problem.:-((
When I have my Universal opened up on my desk the volume and phone dialogs and occasionally the anolog/digital clock dialog keep on appearing and disappearing.
Some times it hardly happens at all and other times it is contant, to the point that the touchscreen won't respond to other input.
When in PDA mode I get a similar situation from the same edge of the screen, but this time the scroll bars go mad.
Previous posts here have suggested either grit in the edge of the screen or dirty contacts. I have pulled the screen apart and cleaned all the contacts as well as cleaned the edge of the screen and the case around the 'affected' area.
Since the problem seems to be down to one particular area of the screen - is it more likely to be pressure from the case or a connection issue.
I'm inclined to think it is pressure from the case, but don't know much about how the touch screen matrix works.
Any help with this would be appreciated - at the moment the screen problems are rending the device pretty unusable.
Surely someone here mush have some ideas, this is driving me mad.
Currently running with the back of the screen off and prodding and pocking at connections to see if it makes any difference, but doesn't seem to.
Next stop is to strip down the base to see if there are any issues with the connection of the screen cable on the main board.
The frustrating thing is that the problem seem to appear and disappear - sometimes it if fine and then other times the dialogs are appearing.
When I have the dialogs appearing I try opening and flipping the phone back and forth and sometimes it goes back to normal but more often than not it doesn't.
The first thing that I want to establish is what is likely to be causing the icon area screen to appear as though it is being pressed?
Cheers,
Julian
I'm definitely no hardware expert but my Universal showed a similar behaviour a few days ago and I'm quite sure it has something to do with the case and/or the cable(s) between the screen part and the main body of the device.
In my case, only a small part of the touchscreen (lower left corner) remains working and the speaker on the display side also refused to work anymore. I've applied some pressure on the edges of the display and the speaker "slowly" began to work again... and so the touchscreen did.
Good luck :?
.ox
Is your phone now working properly?
I have had the screen apart, but do major change. Next stop strip the whole thing down.
I'm starting to suspect the cable, but cannot see any obvious problem with it.
Yes, currently my phone works perfectly.
Did you check the connectors "inside" the display part of the phone (e.g. receiver, ...)?
.ox
Hi,
I have opened up the back of the screen and checked the connections of the ribon cable to either side of the screen and also checked the connection of the actual screen to the circuit board.
It would be useful to know a bit more about how the touch screen side of things work bearing in mind that only one corner of the touch screen is being affected.
I'm going to try to strip down the whole phone and check the connections on both ends of the cable between the screen and the main unit to see if that makes any difference.
Well, I have stripped down the phone and cleaned the connections on both ends of the cable between the screen and the main board and at first for a day or so the problem appeared to have gone away, but now it is back.
I am starting to suspect that it is a problem with the actual cable, possibly a loose connection in the wires - the connectors appear OK and problem appears and disappears when the screen is flipped.
I read here that you cannot buy the cables seperately - is this true?
The next option is to take the cable out and either check all the connections and repair it, however it is a random fault so difficult the trace.
The other option I have considered is to bind the cable tightly with PTFE pumbers tape which is thin enough not to cause any problems, the PTFE will bit will help when flipping the screen and binding it might (hopefully) ensure any loose connections don't remain loose.
Any other ideas from here?
Related
Hi,
The touch screen part of my universal has ground to halt to the point that it won't work.
There doesn't appear to be any cracking and I don't recall dropping it or sitting on it.
I work a fair bit outside and can get quite a bit of dust and dirt in my pockets and am wondering if it could be due to dirt getting into the connect on the hinge.
Has any one else come across problems with the hinge?
I'm reasonably adept with a screwdriver - are there any things to watch out for when disassembling to check it over?
Hi..
If u can open with the Universal guide posted in the forum then try clean ing the connectors on the Right and Left of the Clamp Shell part with Iso Propyl Alcohol.
Before opeining you can try pressing mildly with yr fingers, at all the forur corners..it can start working..else do the above...
Hi,
OK, the screen seems to be working OK this morning, however I seem to be getting a sort of ghost effect where it appears as though the phone icon and the volume icons are getting pressed resulting in the volume controls and the phone/flight mode popup appearing on screen.
I guess it is all down to dirty connections.
Do you have a link to the thread about dismantling the hinge, I can't seem to find it.
Thanks.
re isopropal alchol
only use 99% alchol to clean contacts anything below that can cause corrosion on printed circut boards and contacts.
any progress yet.
mine stopped working today too.
but when i took off my screen protector, it worked for a while.. now its dead again.
I think the screen protectors may cause this problem, as I too had this problem with a screen protector; but when i took it off it would work and and off. I cleaned the screen up and after a few hours my screen was working again!
being in Australia I go to the beach allot. with my jasjar.
the sand gets stuck in the sides of the screen putting pressure on the screen and disabling any input. just a thought that it could be the same with u.
hope u sort it out, otherwise claim it on warrenty sooner than later.
The problem I have with the screen is that occasionally the touch screen side of things appears to stop working and also the the volume, wifi and phone dialogs keep on appearing as if I am pressing the relevant icons in the top bar.
I'm guessing some dirt has got into it somewhere or there is a loose connection, but am struggling to open up the screen's case to inspect it.
6680abhi said:
I think the screen protectors may cause this problem, as I too had this problem with a screen protector; but when i took it off it would work and and off. I cleaned the screen up and after a few hours my screen was working again!
Click to expand...
Click to collapse
i took off my screen protector and it worked an hour...
got home, prepared to go to the T-mobile store.. then cleaned my screen ( without protector ) with a small cloth and it was working again.. so weird..
lets wait and see what happens ..
It's not really that weird: If some dust, or something equally small gets between the screen and the plastic frame, it can put enough pressure on the screen, and so the touch screen takes it as a constant (or intermitent) input, invalidating any other action on the rest of the screen.
I just received my Aquapac waterproof (and sand/dustproof) to use my Jasjar hapilly in the beach! :lol:
oh so annoying, my volume sliders keep popping up now..., as if some one keeps tapping, cause when not in Land scape mode when i open the "START" menu. it scrolls down, the same input/tap as wher the volume is in Landscape mode
There must be something wrong ... my screen still isnt working properly
one possible solution for touch screen not working
guys.... although I dont need to register onto this portal and it took me 15 minutes to register (fault of my own) but I got so much relieved with the solution that it deserved 15 minutes of my effort ;-) I hope it helps someone...just like it did help me....
I own a P835 Asus mobile and from past 2-3 days was having problems - start menu continuously appearing and my taps not getting recognized. Since yesterday my screen suddenly stopped responding to any taps or scrolls altogether.... buttons were working fine but not the screen..... i spoke to the facilities centre this morning and was about to take it to the shop but due to my laziness...didn;t go.....
Thanks guys.... what you mentioned above is very correct.... it was just a tiny molecule of dust that the screen was interpreting as my input and finally refusing all my taps..... I just cleaned the screen and the speaker side with the mere stylus n things started working.... thanks a lot.... more than laziness was this worry cause I just bought this piece a month before....
so people...before takin it to the shop....try this one too.....huhhh.....
I don't understand it, the 8525 I have has a blank white screen. I thought the ribbon cable was bad so I ordered a new one, cost me $50, put it in, still the same problem. The motherboard itself is fine, I swapped it into another 8525 and it works with no problems, I swapped a different board into my 8525, and it has the same problem, blank white screen. I checked the LCD and everything, but I don't freakin understand it!! Anyone know what the heck is going on? It's annoying the crap out of me because I can't find the source of the problem.
Have you tried to swap the D-pad controller between those two devices?
shmilson said:
Have you tried to swap the D-pad controller between those two devices?
Click to expand...
Click to collapse
Nope, haven't tried that....but I completely removed the dpad controller and still had the same problem.
Oh and the dpad IS working because I was able to hard reset the device even though I can't see anything....
Is you're void sticker gone? If not I'd say get AT&T to replace it, that's what I did when I had that problem.
Check our USB port and see if it's shorting anything? That's what happened to me. I go the white screen every I plugged in anything into the USB port.
Dpad
After loosing some screws, the problem got better, but still I have some white screens here and there. The d-pad works intermittently. When on a whitescreen, turning the device of, holding the middle D-pad key (or up together sometimes) and turning it on brings back the screen. That's why I'm suspicious about the d-pad controller. In the meantime I'm waiting for a replacement from cnn.cn and will post my results.
shmilson said:
After loosing some screws, the problem got better, but still I have some white screens here and there. The d-pad works intermittently. When on a whitescreen, turning the device of, holding the middle D-pad key (or up together sometimes) and turning it on brings back the screen. That's why I'm suspicious about the d-pad controller. In the meantime I'm waiting for a replacement from cnn.cn and will post my results.
Click to expand...
Click to collapse
I notice that the service manual makes a specific point of noting the d-pad connector must be inserted precisely and with no angle. It is a very small connector and has two tiny screws. It does seem this connection is delicate and might become loose if keys on the d-pad are firmly pressed.
Mike
mikechannon said:
I notice that the service manual makes a specific point of noting the d-pad connector must be inserted precisely and with no angle. It is a very small connector and has two tiny screws. It does seem this connection is delicate and might become loose if keys on the d-pad are firmly pressed.
Mike
Click to expand...
Click to collapse
I did notice it too. After a lot of tries, I got to the optimum on my phone (after the whitescreens started -- probably from a fall), giving a slight torque to the screws but not too much. It's much better then before, but still.. The d-pad pressing actually "fixes" the problem, so I guess that the controller is bad or when I apply some pressure I "fix" this. It's completely random and may be related to temperature (after taking battery out for a long time, problem tends to be less often). In a few days when my controller arrives I'll make sure I screw the connector well and hoping for the best.
When I look at the xilinx(if I remember it right) fpga circuit closely there is a small gap between 2 corners and circuit board. It might be the case that the solderballs under the chip arent soldered that well and when you use D-pad the circuit board bends a bit and in a time the bad solderballs loose connection. The bad thing is that you cant check the solderballs at home (it requires x-ray inspection if you want to keep it in one piece).
FIXED IT!
I fixed it! Well, it's a bit soon to tell it'll keep like that, but after ordering a new d-pad controller from cnn.cn, and taking extra care on installing it as the technical manual says (keeping 90 degrees angle on connection to keyboard), everything is back! No more whitescreens (let's hope it stays that way), ALL buttons are back!
I took apart my tytn, including the screen part.
After reassembling it, I've had random issues related to the keypad and screen.
By keypad, I mean all the keys on the screen part of the phone (D-pad, call/hangup,soft left/right, Internet Explorer & Email).
They will randomly cease working and randomly restart working (usually after turn on/off the screen with the power button)
The screen will also randomly turn white and come back on only if I turn off the screen and then back on.
Im thinking it has to do with a loose connection somewhere in the screen section of the phone, however, Ive taken it apart 2 more times to check everything out and the problem persists.
I wonder if anyone experienced the same thing and found which specific internal is the issue.
i would like to know too cause my buttons just stopped working. so the talk, end, message, Internet explorer, ect. but the left down up right and center button work.
I have the exact same issue.
All the keys (not keybord keys) randomly stops working. I am so used to it now, that I dont even try to answer the phone with the green key button.
The screen fades to white, sometimes (maybe 1-3 times a day).
The screen is white when awakening from "sleep mode", turning on and off the screen fixes that after a while (50% of the time white screen when from sleep mode).
I have found out that putting a finger nail between the keyboard and the screen, on the right hand side, when in closed position, and then putting the screen back on, gives me a 99% chance of funktional display.
The problem also accurs in the "full keyboard position", But putting the finger nail in the same spot helps.
So I think the problem of the connection is in the keyboard part of the phone, since those slide contact always are on the right hand side, and the display contact shift side.
I would lite to know if any body have a permanent solution for this.
(I have now opend my phone yet, and I have tryed the putting thin plastic between the display and the cover, with minimal success)
thanks for your time
alkizmo said:
I took apart my tytn, including the screen part.
After reassembling it, I've had random issues related to the keypad and screen.
By keypad, I mean all the keys on the screen part of the phone (D-pad, call/hangup,soft left/right, Internet Explorer & Email).
They will randomly cease working and randomly restart working (usually after turn on/off the screen with the power button)
The screen will also randomly turn white and come back on only if I turn off the screen and then back on.
Im thinking it has to do with a loose connection somewhere in the screen section of the phone, however, Ive taken it apart 2 more times to check everything out and the problem persists.
I wonder if anyone experienced the same thing and found which specific internal is the issue.
Click to expand...
Click to collapse
These are the exact symptoms of the "SCREEN FADING INTO WHITE" problem. See this thread for more info: http://forum.xda-developers.com/showthread.php?t=303872
The common causes for this are a bad connection to the D-PAD controller PCB (in the technical manual they mention it should be carefully checked and the really small screews with same torque making a 90 degree with the PCB), a bad controller (that was my case, had to order a new one) or not enough pressure on the square black chip on controller (some people seem to have fixed it by putting a plastic sheet in between the chip and the case, to apply constant pressure).
I suggest you try to re-open your phone and reconnect the D-PAD PCB as carefully as you can, double checking the connection and the screws there.
I did fix my problem, by ordering a new PCB and replacing the old (probably bad) one. It started to happen after I dropped my phone and it's the only thing that worked. Now my phone is as good as new.
Hope this helps!
Similar Issues with screen
I have similar issues;
Anything thats on the foreground gets closed by the 'x' button and if I slide it open the start button gets continually pressed!
Seems to be the top right corner of my TS thats at fault
sometimes it's fine....most of the time its not!
Andy.
I have the same! I have a huge dead spot in the middle of my (Tytn) screen, and if you tap there it actually activates the "ok" in the top right corner. The rest of the screen works ok. Whilst drawing in notes any drawing near the center dead spot results in a streak to the top right hand corner...
Bad screen?
Bad rom?
Bad motherboard?
lepic2019 said:
I have the same! I have a huge dead spot in the middle of my (Tytn) screen, and if you tap there it actually activates the "ok" in the top right corner. The rest of the screen works ok. Whilst drawing in notes any drawing near the center dead spot results in a streak to the top right hand corner...
Bad screen?
Bad rom?
Bad motherboard?
Click to expand...
Click to collapse
You can rule out the ROM and M/board in my view for this specific problem. Your issue is very similar (and I think has the same cause) as those who find programs close randomly when in portrait mode and when they open the keyboard the start menu often pops up untapped.
I think this is just a case of a bit of pressure being put on the screen top right corner. Some folks have tried the business card run around under the bezel fix and had some success others have had to return for replacement/repair.
Some have taken the device apart and removed the gasket around the screen under the bezel, but this is not guaranteed to work.
Others have replaced the screen and for this particular problem it is very rarely successful as the screen is not normally damaged.
If you have a warranty use it - all of the above "fixes" are warranty voiding.
Mike
Hi Mike
It's an interesting problem as when performing a click and drag in Notes (drawing mode) the center section of the screen seems to work normally - a square box can select an area right through the middle of the screen - suggesting that the screen (as you say) is OK. So what is causing the a tap in the middle of the screen to register in the top right hand corner, when we now know that the center of the screen can work and respond in the correct manner. The size of the affected area is about the size of a thumb print EXACTLY in the middle. Personally I would like to believe that performing screen alignment 4 - 5 times a day for the past year has worn out the center dot and that is affecting the surrounding area. The trouble is that this fault has been reported on this site a few times now, and everyone says it's caused by something else! What did I do immediately before this happen I hear you ask? I flashed a new radio rom and was fiddling with a piece of card I have wedged down the RHS side of the screen to try and help stabilise the screen alignment. Since this problem arouse, I have removed the gasket - but that hasn't fixed it. I'm going to try and boot up the phone out of the casing to see what "zero" pressure applied to the screen does.
I'll report back...
Lepic.
lepic2019 said:
Hi Mike
It's an interesting problem as when performing a click and drag in Notes (drawing mode) the center section of the screen seems to work normally - a square box can select an area right through the middle of the screen - suggesting that the screen (as you say) is OK. So what is causing the a tap in the middle of the screen to register in the top right hand corner, when we now know that the center of the screen can work and respond in the correct manner. The size of the affected area is about the size of a thumb print EXACTLY in the middle. Personally I would like to believe that performing screen alignment 4 - 5 times a day for the past year has worn out the center dot and that is affecting the surrounding area. The trouble is that this fault has been reported on this site a few times now, and everyone says it's caused by something else! What did I do immediately before this happen I hear you ask? I flashed a new radio rom and was fiddling with a piece of card I have wedged down the RHS side of the screen to try and help stabilise the screen alignment. Since this problem arouse, I have removed the gasket - but that hasn't fixed it. I'm going to try and boot up the phone out of the casing to see what "zero" pressure applied to the screen does.
I'll report back...
Lepic.
Click to expand...
Click to collapse
It will be interesting to see what results you get. You'll need the old rubber band technique to hold the battery in place while you do it!
Mike
Well it's not due to the case squishing the sides of the screen as I just dismantled my hermes, wired it all up in bits on my desk, powered it up and still the screen has a dead spot in the middle and phantom taps in the top right. Temperature is normal room temp, approx 22deg c today.
I'm not sure the exact mechanisms of how these touch screens work out where you are tapping (resistance, voltage), but it looks like there are 3 separate strips running around the screen. 1 goes straight across the bottom, two goes up the LHS and across the top and 3 goes up the RHS. Therefore there is a gap between strips 2 and 3 in the top RH corner. Coincidence? hmmm It seems to me for it to register a tap in the top RH corner, strips 2 and 3 would register low voltages (or high resistance) and bottom wouldn't register at all. Thus suggesting a fault with the PSU that powers the touchscreen. Taps near the edges work because they are near the edges and therefore the resistance is not too great and can be detected, taps in the middle and worse off because they are far from all the detecting edge strips.
Does anyone think that there might a registry tweak for boasting power to the touchscreen?
Hermes Whie Screen Problem
To fix the "white screen" problem, you have to take your unit apart, and reconnect the ribbon cable.
I have a new 8525 and it started happeneing to me, so I took it apart this week, and reseated the ribbon connector.
Fixed the problem.
Has anyone here read and understood all that is said here:
http://msdn2.microsoft.com/en-US/library/aa919680.aspx
Perhaps someone could compare the touch.dll in Black Majik to WM5 - should be the same right?
How come that HKLM/hardware/devicemap/touch doesn't show the touch.dll driver as drivername? Keyboard has it's driver...microsoft says it should say drivername = touch.dll
Do you all have that in your registry?
Hi, i have been experiencing a screen display problem.
When i power on the Hermes the screen does not power on.
If i then place the Hermes on a hard surface and press down hard on the long sides at the edge of the screen i can make the backlight and display appears.
However, if i release this pressure the backlight remains on but the display will become scrambled. The scrambled display is variously showing white noise, scan lines, mispositioned graphics, and ultimately fading to white.
Also, if the phone rings the audio is distorted and crackling.
I have dismantled the Hermes as far as removing the housing for the LCD from the rest of the phone. I then opened up this housing and disconnected / reconnected the LCD flex cable that is by the very edge of the housing. Then reassembled phone. No improvement was made, in fact the display issue was made more tempermental!
However the phone stil works as i am using it at the moment as a 3g modem for my laptop.
But it is extremely frustrating / near impossible to use it for any other purpose in this condition!
I am wondering as to what the problem could be and how i might solve it?
I am thinking that the problem must be due to a poor connection / oxidation / dry solder somewhere.
I would appreciate advice as to what i could do to solve this issue myself.
Next steps???
>>> Would there be any use in spraying a little WD40 into cable contacts?
>>> Someone has suggested passing a heat gun over the PCB to bond any solder that may have cracked.... Although i am sure that this is a trick that can work with old PCBs that he plays around with i am not so sure that this would be such a good idea on the flimsy multi layer boards in the Hermes.
Let me know what you think of these ideas...
white screen
Hi..not sure which version of the hermes you have, but this has been a common problem for years. My Cingular 8525 did the same thing. I finally figured out while placing the phone into a desktop charger that it was putting pressure on one lower corner of my phone and it would go white. It got to the point any pressure on it would cause the screen to fade to white. I contacted AT&T tech support about it and even though fone was out of the warranty period(over a year) they sent me a refurb ATT branded 8525 at no charge. I've had that one now close to two years with no problems.
Hi Oleschuldad, thanks for your reply. I have the Hermes100 branded as the "ORaNGE SPV M3100". Yes i have read that the white screen issue is a major blight for the hermes phone. From what i have read It seems that there are numerous causes and the problem can be difficult to trace to a specific component. The problem that my phone has is the opposite to the what you had with your phone. In that i must EXERT PRESSURE on the phone to be able to read the display. The indication is such that i am certain that it must be the result of either loose connection / bad solder / corrosion somewhere.
Think that i will get a can of electrical contact cleaner spray and clean the contacts on the flex cables.
Looks like corrosion is definitely an issue in my phone as there is some green oxide on the round watch type battery that sits on the main board next to the contacts for the main battery.
I will have to strip the phone down again at the weekend.
Hello,
for first I've already read some topic covering the white screen problem. I have the white screen every time on my Hermes since booted. Going into bootloader also shows white screen. I don't see any signs of misalignment.
I've already taken apart my Hermes and reconnected all connectors I've seen, including D-Pad connector, tightening and loosening the screws by it. I see there's nothing else I can fix without replacing any parts (or am I wrong?) What should I buy? Do you think that the actual screen may be faulty? Or maybe the flex is damaged and I should buy it? (well I think that some chip is connected to flex so I don't know if it can be replaced anyway). My main question is: if the screen is all white, is it possible that the actual screen be faulty?
It could be a number of things which could amount to $$$$ by throwing parts at the phone - may be cheaper to just buy another. Before the completely all white screen did you have occasional white screens with increasing frequency? First try some of the fixes for correcting whitescreens - pressure on the dpad - etc. If you still get nothing the chip could have come loose - but who knows?!!!! Need some more information - history etc.
Unfortunately don't know the history... bought cheap off ebay hoping it can be easily fixed already ordered the screen, if no luck, will send as spares/repair in my country - should earn something anyway.
i have a fault with mine some times (well a lot now) when i open it or close it all the way i get a funny fuzzing on the screen and some times it just ends up going black, move it back and forth a bit and the screen collour is inverted. i have to press the power button twice once for off then back on and it stays normal collours till u move the screen again. is this called white screen?
Not really - yours should be an easy fix. Seems like the flex cable is either loose or cracked slightly. It only occurs when you slide the keyboard out right? Any problems with the front keypad - with the unit closed?