Database Users

Keypad + screen issues (after reassembling)

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?

Screen turning red on 8525?

Today I noticed that my 8525 has a weird red tint on the screen whenever I close the keyboard. On the right hand side of the screen, there is a line, and everything to the right of the line has a weird red tint. If I open th phone slowly, the line dissapears at the same rate that i'm opening the phone. It almost seems like something underneath the screen is... pushing on it from below or something? Just a guess. Also the screen's alignment pretty much doesn't work at all anymore, like its the curser will either be on all the way to the left, or all the way to the right. never where i am pushing. Quite annoying.
Thanks for any help!

Me Too!
The same exact thing is happening to my phone too. Sometimes when I slide it back and forth a lot it will dissapear but come back again later when I move the slider. It appears when the slider is slightly off of the closed postition. It never appears when it is open. I think it may have too do with the cable being loose between the main body and the upper screen part or the magnet which detects the slider postition is interfering with the LCD. Any solutions yet?

screen calibration

is there a way to calibrate the screen? sometimes feel the click is not accurate.

no, these screens should not need calibration anyway. If you're talking about the click being off a little on the home screen I have that as well, but it seems to be limited to the Live Wallpapers. If its off by alot you should send it back for replacement.

when i click the dot, sometime the search box pop up. the dot is above the search botton

dot? what dot?

melterx12 said:
dot? what dot?
Click to expand...
Click to collapse
I think he means the dots at the bottom of the screen to move from one screen to another on the Home launcher. The dot(s) is/are right above the search button on the bottom right of the screen.

oh, yeah that does not sound normal. try restarting and if the issue persists you mgiht want to consider sending it in.

I've noticed sometimes random touch events happen, I'll touch something, and something else gets activated more than half the screen away.

bofslime said:
I've noticed sometimes random touch events happen, I'll touch something, and something else gets activated more than half the screen away.
Click to expand...
Click to collapse
here u go
http://www.google.com/support/forum/p/android/thread?tid=04134c63c784258e&hl=en

bofslime said:
I've noticed sometimes random touch events happen, I'll touch something, and something else gets activated more than half the screen away.
Click to expand...
Click to collapse
are you sure you aren't touching another part of the screen?
Sometimes the palm of my hand touches the bottom left of the screen and that will cause random touch events.

You need to touch slightly above the dot. Otherwise your finger is very close to the google search soft key.

dwang said:
are you sure you aren't touching another part of the screen?
Sometimes the palm of my hand touches the bottom left of the screen and that will cause random touch events.
Click to expand...
Click to collapse
I know for fact that sometimes I DO touch other parts of the screen like with my palm, etc by accident. however there have been cases where this wasn't happening and I still have miss touch events.
Example. I was holding my phone with my fingers in landscape with my left hand, and using only the pointer finger of my right hand to touch something in the middle top of the screen, at which point the phone pulse vibrated and the quick search screen popped up.
I posted to the google link outlining the different events that I have noticed. Multitouch would fix point averaging between somewhere you're accidentally touching and where you intended to touch. This however isn't the only thing going on, as I do believe there is some random strangeness occurring. I never had any such issues with my G1.

bofslime said:
I've noticed sometimes random touch events happen, I'll touch something, and something else gets activated more than half the screen away.
Click to expand...
Click to collapse
it happens to me,too, i thought it is caused by my palm touched the edge of the screen when i clicked using finger, but it is not. when i restart the phone, it,s gone.

mattyboy247 said:
I think he means the dots at the bottom of the screen to move from one screen to another on the Home launcher. The dot(s) is/are right above the search button on the bottom right of the screen.
Click to expand...
Click to collapse
yes. that's the dot.
I read from another reviewer, he said the sensor of the soft key is located a little above the icon for the key. this may cause the problem.

cuitao said:
yes. that's the dot.
I read from another reviewer, he said the sensor of the soft key is located a little above the icon for the key. this may cause the problem.
Click to expand...
Click to collapse
This messes up pretty much everyone I hand my phone to look at/play with. Its fine if you're aware, but it does show a sign of less refinement in a device that would have been nearly 100% free of hardware design flaws.

I feel the same way, especially with the soft-buttons and the "p" key in portrait mode. Last night after walking a bit outside my key-presses were atleast an inch off.....I attributed that to my fingers being a little staticky.
Othertimes my fingers just never work on the screen for a few seconds, rubbing my fingers together fixes this problem.
Something to do with http://en.wikipedia.org/wiki/Capacitive_sensing I guess

I find that sometimes my fingers wrap around the phone and just touch the front edge of the screen while holding it, causing random key presses. I guess I'm still used to holding the wider and less sensitive Touch HD.

anyone have the touch screen alignment problem or it's just me?

try to download "multi touch paint" from the market.
draw a line across near the bottom of the screen. you'll find it always below where u touch, compare to a line draw across the top of the screen.
http://android.modaco.com/content/g.../300120/touch-alignment-problem/#entry1161040

Yup seems to be your the only odd-ball, just kidding i couldnt draw the thing either haha.

I get exactly the same behaviour when I draw a line right over the touch-buttons and when I do the same at the very top edge of the screen, can't see anything that looks misaligned.

I have that issue,too.
That happen most likely when I turn my phone side way and try to access the bottom icon on the home screen. The touch screen has 30% chance to be out of alignment.

the line i draw just slightly below where i touch, that is around 2mm, sleep/reboot won't fix it.

[Q] Phantom touches screen issue

So I've been getting ghost or phantom touches on my phone for the past few weeks. I couldn't figure out what was causing it because I've never dropped my phone and it never got wet. The phantom touches only appears down the right side of the screen in almost a straight line. It doesn't happen all the time and I thought it was random but I got it to occur at a successful rate. If I press down on the top left corner of the screen, it would cause the phantom touches. When I press and hold down the top left corner of the phone, everything is fine and no phantom touches appear. I decided to tighten the screws on the top left and it seems to have made it a little better. I'd have to really tap on the top left of the screen to make the phantom touches appear again and it doesn't occur at a 100% rate but it's still occurs.
Anyone know what is causing this? I thought it would be a broken digitizer but it doesn't make sense that tightening the screws would cause the issue to almost fix itself. Problem with the geomangnet? I'm not sure what that does really.

Download and run a multitouch testing app of good reputation:
https://play.google.com/store/apps/d...ltiTouchTester
https://play.google.com/store/apps/d...touchpro.tests
Google Android Debugger - Show Touch Points:
SETTINGS
ABOUT PHONE
Touch BUILD NUMBER ten times
go back one screen
DEVELOPER OPTIONS
check SHOW TOUCHES
Download this image to your phone and open it: http://vodly.to/content/avatars/917b...e96ca61f06.png
Put 2 (or more) fingers on the screen of your Note 3 in a horizontal line in landscape mode. You can also use Portrait mode with 2 fingers.
Move the fingers slightly about, trying to have both (all) in a straight horizontal line.
After only a bit of trying one (or more) detected fingers should disappear (become undetected) or ghost touch detections should appear.

M4GEN28 said:
Download and run a multitouch testing app of good reputation:
https://play.google.com/store/apps/d...ltiTouchTester
https://play.google.com/store/apps/d...touchpro.tests
Google Android Debugger - Show Touch Points:
SETTINGS
ABOUT PHONE
Touch BUILD NUMBER ten times
go back one screen
DEVELOPER OPTIONS
check SHOW TOUCHES
Download this image to your phone and open it: http://vodly.to/content/avatars/917b...e96ca61f06.png
Put 2 (or more) fingers on the screen of your Note 3 in a horizontal line in landscape mode. You can also use Portrait mode with 2 fingers.
Move the fingers slightly about, trying to have both (all) in a straight horizontal line.
After only a bit of trying one (or more) detected fingers should disappear (become undetected) or ghost touch detections should appear.
Click to expand...
Click to collapse
Thank you for the help and suggestion but I've already tried this. My touch screen is fine in terms of detection. I can put 10 fingers on the screen and it would recognize all 10 fingers. My issue has something to do with the top left corner of the screen affecting the right side of the screen. Like something is loose. When I clamp down on the left corner of the phone, everything works fine. No ghost touches (that sounds dirty) or any of the sort. When I let go of the top left corner, I will some times get ghost touches.

WillofWillz said:
Thank you for the help and suggestion but I've already tried this. My touch screen is fine in terms of detection. I can put 10 fingers on the screen and it would recognize all 10 fingers. My issue has something to do with the top left corner of the screen affecting the right side of the screen. Like something is loose. When I clamp down on the left corner of the phone, everything works fine. No ghost touches (that sounds dirty) or any of the sort. When I let go of the top left corner, I will some times get ghost touches.
Click to expand...
Click to collapse
try downloading another firmware and revet back to stock rom that il do are you on custom rom?
BTW Don't forget to thanks me

M4GEN28 said:
try downloading another firmware and revet back to stock rom that il do are you on custom rom?
BTW Don't forget to thanks me
Click to expand...
Click to collapse
It's not a firmware issue. It's definitely a hardware issue since it starts tapping on buttons inside TWRP recovery. Ah well, I tighten the screws even more and it looks like the phantom touches are gone. Hopefully it stays that way even though I destroyed a screw in the process. Those tiny things are fragile.

if the touch ghost click is in some certain location most because of pollution (mainly chemical), best is use ISO alcohol also use a very tinny sharp blade, like a very thin one and slightly go along side the place that does this, sometimes you have to try both horizontal and vertical, then clean with ISO, do a few times it does alright. it does work on most of touch screen include note 3 as well. I've been in IT and fixing all electronic for last 30 years in New Zealand. if you had problem text me on 021 548484