[Q] Touchscreen sometimes work's sometimes doesn't - Tilt, TyTN II, MDA Vario III General

I've been looking for threads on this topic for some time now. I've seen even one funny thread that said it's good to use TV static on touchscreen to fix it
So, basically my touchscreen stopped working one day. I didn't have time to look at it so for few days I just used buttons to use it. Then it started to work and worked for about a week, and suddenly stopped working again. For about a week, when it started working again.
Then I figured I could just reboot my phone when touchscreen stopped working, and if I took out the battery it magically worked again. But now it won't work so I'm stuck in about 1 week long breaks from my TS.
It's not exactly 7 days, I'm not counting, but it seems to be 6-8 days for each "phase". Now it's quite major inconvenience because last time it worked I changed my alarms and now I have to get up earlier, and Kaiser rings while I'm at work. While other areas of WM6.5 I can usually navigate with just buttons it doesn't work in alarm settings.
I haven't installed anything around the time it started the strange behavior. I don't think it was caused by a fall too, but I can't be sure if it didn't fell back then.
Anyone has ideas for what to do, how to fix it? I read in other thread one could check if TS connectors are tightly connected, but I don't want to open Kaiser to check especially if it's possible that the cause is completely different.

This is a slim chance but worth a try..
Check carefully around the edges of the screen and make sure there's no dirt or anything pressing on the screen.. There's a rubber gasket that's there to keep dirt out but if you get anything under the gasket it will press on the screen making it unresponsive. Take a small piece of thin cardboard and go around it to clean it out.
I had a similar problem and this is what it turned out to be..
Old post but it might help somebody out..

Could it be the metal front housing pressing on the touch screen irregularly?
Should there be a small space in between?

Related

problem with touch screen, can't click on anything

i just recently bought my xda2s and it worked fine for a week though. now, from time to time my screen would be "untouchable". literally i cannot click anything or open anything even if i soft-reset it for 10x. buttons seem to work fine but the screen does not. it happened twice while my bluetooth was "on" and i thought maybe it was the bluetooth but recently the same thing happened with my bluetooth now turned "off". i have to wait for hours before it would return to normal again. Anybody help please? By the way, my bluetooth version is 1.0.0 build 3500.
I had a similar problem on my Samsung SPH-i700 PocketPC Phone through Verizon Wireless. Even after a hard reset, I couldn't get past the screen calibration, until I found out that a piece of hair and debris found on the outer edge of the screen right under the lip of the cover was interfering with the touch portion of the display. Apparently, the touch sensors extend past the visible area of the screen, so with both a little aircan and vacuum cleaning, the debris was picked up and the touch screen functioned normally again.
Is this a consistent and/or intermittent problem? Did a hard reset resolve anything?
look for the alignment
Do you have Calligragher 7.4 installed? I read about this in Tekguru website that if you re-install 7.3, the problem goes away. That is what I have done and it seems to be working for me so far (2 days test).
i've checked out my screen and i dont see any dirt or something... i even have a screen protector... dont know if that might cause the problem. Same thing happened last night but this time it was just for a short period of time then it went back to normal... I didn't try a hard reset cause i dont want to loose some of my files but if ever it happened again, i might try doing a hard reset and see what happens... right now, im having my xda2s checked if maybe it's a factory defect or something...
regarding the caligrapher program thing, i dont have that...
Hey, i have the exact same problem I bought mine here in Toronto, from an Asian dealer, its the O2 XDA IIs asia-pacific model.
Same problem, screen(touch screen) goes dead like no responses to any touches, for like half hour - 2hour once in a day or something and nothing cures it, hard soft rest nothing. just with time it suddenly starts working and the Handheld is useless until then...well i dont see any cure and this is the only place i have heard about someone else having this issue, i will take it back to the dealer, in hopes of exchanging.
any feedback will be will be appreciated
overclock it for a few days..that fixed mine..dont know how but it did.
There is a tread in blue angel about screen aliment that you might like to read. seems 4k of devices went out with screen problems.
What is overclock it. Fairly new to this. Mine just keeps trying to allign and thats all it does it doesnt go into boot mode just allign screen all the time

One touch and then touchscreen dies

Hello folks,
I've had a kaiser now for a couple of years, but recently its developed an interesting problem/quirk.
When I first boot it up, I'll get one touch on the touchscreen, and then no more. Doesn't matter if i turn the screen off and leave it for a day, or anything, I'll get no more until I reboot.
One time recently, however, it worked for multiple touches over 30 seconds or so. When I picked it back up again later, it went back to its usual self.
I've ruled out any software issues by flashing to a much newer rom with a new radio. The behaviour is still the same.
My first thought is that there might be something pressing on one of the edges of the screen, so that I can "click", but not release. I tried cleaning out under the bevel with a pin, and although i pulled out half the contents of my pockets, the issue remains unresolved. I'm ordering some small torx screwdrivers to get the bevel off, to give it a more thorough cleaning.
Does anyone have any other ideas I could look into? I'm hoping its not a dead screen, although its very unusual behaviour if it is.
Lastly, I came across an app a long time ago that was being used to show the ability of multitouch on touchscreens. It would show the pressure/point of contact on screen. If I could get something like this, or indeed any information on the screen pressure, I would know for certain whether my theory about being able to press but not release is accurate. I've searched, but I havent managed to turn up anything. Does anyone have this cab/something like it?
Thanks for any help guys.

HELP!! my screen works....but it doesnt....

ok guys and gals, heres one for you. i know im a noob but this one has got me stumped and i cant for the life of me find anything in this or any forum or even google. i have the tilt. just flashed a cooked rom for the first time several weeks ago thanks to everyone on here and all the FAQs and stickies. (to any other noob, all the info is out there!!!!! dont be lazy!!! SEARCH AND READ YOUR HEART OUT!!!!) anyway, im running Witscheys latest 6.5 rom build 23071 HSPL 3.34 w/ radio 1.70.19.09. ive been tweakin it pretty much every day tryin to get it to the way i want.
well im so close to finishing and the the screen suddenly decided to randomly not respond to my touch. the buttons were the only way to control the phone. even after numerous soft resets. then it would decide to start responding. so i was doing some research and tried a couple diff methods of fixing "screen freezes" (but i dont think its a "screen freeze" as it worked fine with the use of the buttons) finally found a post in the thread for the room that read:
Originally Posted by cpala
Hi witschey,
I work with you rom a week a go, but sometimes the device screen freeze.
ugoff
Member
I had that same problem. Need to change the cache settings in Advanced Config. The filesystem cache defaults to 512kb, so I set it to auto and it doesn't freeze anymore. I also turned up the glyph cache to 32kb. Between the two, the phone interface runs fast and smooth.
so i tried that and it still didnt fix it. then i decided to just do a hard reset and install one app a day at a time (all the ones i had before the hard reset) to see if one of them was casing it. well after the hard reset i didnt notice the problem anymore. i was stoked. now all i needed to do was figure out which app was giving me trouble. WELL about 10 min later when i was texting my friends as usuall, my phone recieved a message but the screen was black. so i slid it open (wake on slide) and the screen turned on. replied to my buddy,closed the lid and the screen went black..... WTF? slid it open, screen on. closed, screen black.... and so forth. this is the way it has been since yesterday. even tried two more hard resets with no change.
NOW HERES THE WEIRD PART!!! if i slide it open JUST A LITTLE very slowly, the backlight turns on barely. just enuf to see the today screen but its very very dim. its as if there is a bad connection. but the screen is in portrait mode like it should be. if i open it fast the backlight turns on, screen shows portrait, then switches to landscape like it should. close it, it goes black but i know it switches back cuz the next time i open it, i can see it change again.
EVEN WEIRDER--- if open landscape, get into an app or program such as contacts where i can flick to scroll, ill close the lid, immediately flick the screen, open lid and low and behold my friends are just scrollin by!!!! the damn screen is responsive but there is no backlight!!! so to test i plugged into my laptop, activated mymobiler, and EVERYTHING works like it should when i touch the screen, use the buttons, open close the lid. it all shows up on my laptop. but the damn screen is still black when lid is closed. so i can literally look at my laptop and touch the black screen on my tilt and controll it!! WHY IS THE BACKLIGHT SHUTTING OFF WHEN ITS CLOSED!!!!???
so then i decided to tear the damn phone completely apart about 2 hours ago, check all connections, and clean all the dust. all connections checked out fine, put it back together and still have the problem. i know there is a magnet and sensor that tells the screen when to rotate when the screen is opened or closed but its obviously working cuz it will rotate the screen. my guess was that some kind of registry entry has been changed somehow. but then i realized thats not it because the hard resets didnt fix it. now im thinking hardware...... IM SO SORRY THIS POST IS SOOOOOO LOOOONNNNGGG but i dont know what else to do. phone was working great up until yesterday and i cant have this!!! has anyone had this problem with this or any other device or even know which direction to point me in??? PLEASE HELP!!! thanks in advance for any replies!!! the quicker ther better
I think your flat cable is broken. Doesn't make connection when closed (no backlight), barely connects when opened (backlight on).
So I think you need a new flat cable...
I agree with blueflame... I think it has nothing to do withthe rom flash.. it sounds like your ribbon cable is "Starting" to go.. unfortunatly it will only get worse where it wont; read you memory card, and evenutally your Sim card as well (speaking from experiance here).... If you are handy with tools, you can try to but a new one yourself and install it... But there are also some shops aroudnthe world, aswell and some members here who may be able to fix it for you... for a price (and not, I am not one of them)... Sorry for the bad news bud.. but I personally would rather knwo that than hard resettign 100 times and nrto beign able to figure out the problem...
hey. thanks for the fast replies! thats not exactly what i wanted to hear but like Teej said, its better to know than messing around with something else. now by flat cable are you reffering to the biggest ribbon cable inside the phone that connects the screen half of the phone to the keyboard half? Or the connector that comes directly out of the screen itself (meaning i buy a new screen and install and all is well) or is it another cable? but i think those are the only two that have anything to do with the screen other then the one for the sensor/magnet. here is a photo to help point out which ones. i have the manual so i can grab more photos if needed. thanks again for the help so far. good stuff. we are getting somewhere!!
photobucket.com/albums/b145/kewljay223/tilt.jpg
since im not allowed to post outside links yet, type this-----> h-t-t-p-:-/-/-i-1-8-. (minus the dashes between characters) in front of the link in my last post in your address bar to create the ACTUAL LINK and it should take you to the picture.

HOW TO: fix Droid/Milestone touchscreen lack of responsiveness and Ghost Touch issues

NOTE: THIS SOLUTION IS POTENTIALLY DAMAGING AND MAY NOT WORK FOR EVERYONE
PROBLEM: touch screen acts erratic, notification bar keeps opening, screen appears to be touched by someone else continuously (Ghost Touch), and parts of the screen DO NOT RESPOND TO TOUCH.
MY OWN SPECIFIC CASE: I had the Ghost Touch issue for 3 days suddenly without intro, which often used to go away after a reboot or two, then phone worked normally after I removed the battery and left it in a dry area (in a closed drawer between books, no air entering, very dry atmosphere), however the RIGHT SIDE of the screen (Search button, rightmost letters [L and Delete and sometimes ENTER] do not work. If the phone is in normal landscape, you cannot open the notification bar by dragging it normally.
DIAGNOSIS: for some people, the problem is more severe. The Digitiser itself could be malfunctioning and has to be fixed, while for others it could be a true problem with the screen itself. However, for MANY OF US, it is a problem of HUMIDITY. The humidity sensors are causing the phone to act like that. Some say part of this problem happens because the way the keypad affects the phone internally as you open and close it a lot.
SOLUTIONS:
1- To be safe: send the phone to the shop. Ask them to open the phone and apply an extra layer of insulation, in case the digitiser and the screen are okay.
2- If something is faulty, replace it at the shop.
3- MY OWN SOLUTION: based on something I read many times, the solution was to apply DRY HEAT for at least 45 mins. What I did, based on averaging out many experiences I read online, was to remove the SD Card and SIM, remove battery, I heated up a toaster oven for 10 minutes, waited until the temperature was at about 60-70 degrees Celsius, SHUT DOWN THE HEAT, put the phone on its screen on a plate, screen facing down and covered by a cloth to protect it from direct contact with metal, then all inside the oven. The oven is a relatively big one, so phone was AWAY FROM A SOURCE OF DIRECT HEAT. I closed the lid, then every while 15 minutes I would heat the oven for 40 seconds to maintain the temp. This is LIKE (ALTERNATIVE SOLUTION) leaving your phone in the glove compartment of your car while its parked in a sunny spot, to find it really hot in the morning and tough to touch for a while. TO CONTINUE, after the phone was out of the oven (I can't believe I am saying this), I left the phone overnight in a dry area for 8 hours (could need less time). Then, I put everything back in, plugged it, and THE PHONE IS WORKING PERFECTLY NOW!
NOTE that solution number 3 could affect your keyboard buttons if heat is too much. It may cause the glue holding the keys to melt a bit. Be delicate with your keyboard after you restore your phone.
Again, I only did this YESTERDAY. With the exception of some keypad stickiness, the phone is working perfectly now.
I hope this was useful
B.
EDIT: Today is the First of May, phone is still working without a glitch
N.B. Press the Thank you button if you wanna congratulate me on daring to toast my milestone in the name of scientific inquiry
SECOND EDIT: Phone did it again for 2 days. Applied the same method, and it worked again. I think partially it happened because I was in a very humid location.
That didn't work for me, I had no option but to replace the touchscreen/gorila glass.
I love the idea of toasting a milestone
Thought with all my aggression against Moto, I think I just might leave it in there
Luckily I dont have these problems so I wont get tempted
AirLancer said:
I love the idea of toasting a milestone
Thought with all my aggression against Moto, I think I just might leave it in there
Luckily I dont have these problems so I wont get tempted
Click to expand...
Click to collapse
I have to admit, I cared litte whether or not this actually worked. I just wanted to toast it But it did work, so
Pretty tempted to try this out, I think I will when I have free time.
My phone had the dead zone problem for 2 months now, but in some very rare cases, like when it's a very hot day, the screen will work normally for a minute or something. Then it goes back to dead part. I assume this would fix it?
Lesiroth said:
Pretty tempted to try this out, I think I will when I have free time.
My phone had the dead zone problem for 2 months now, but in some very rare cases, like when it's a very hot day, the screen will work normally for a minute or something. Then it goes back to dead part. I assume this would fix it?
Click to expand...
Click to collapse
If it DOES indeed work on hot days, then it means the phone is not entirely dead. But I would suggest you do something less drastic first, such as the Glove Compartment method. No responsibility though
If you're trying to remove moisture, you could also try putting it in a baggie of crystaline cat litter (NOT the clay kind!) - this stuff is sold at a MUCH higher price as a way to save a phone from water damage, but it's the exact same substance. Does a great job removing moisture. It's the same sort of silica gel that's in those packets in medicine/vitamins that says "Dessicant - do not eat".
Or you could just put it in a sealed bowl with raw rice for a couple of days... this is the best and cheapest way (and then you have the silicon "grains", the ones that you find in shoe boxes or computer parts boxes).
Sent from my Milestone using Tapatalk
CybeRNerO said:
Or you could just put it in a sealed bowl with raw rice for a couple of days... this is the best and cheapest way (and then you have the silicon "grains", the ones that you find in shoe boxes or computer parts boxes).
Sent from my Milestone using Tapatalk
Click to expand...
Click to collapse
Pretty sure that rice doesn't do anything, I don't know how that started as a suggestion, but its not better than anything else; its not known to be absorbant, but the silicon is.
I've tried the method but the right segment of the digitizer still doesn't work.
My biggest issue with regards to "lack of responsiveness" are the 4 capacitive buttons. Pressing the Home key is always hit and miss. I know I hit it all the time because I can feel the vibration feedback but it only goes to homescreen 50% of the time.
Will also be testing this out as soon as I have the spare time. My screen started acting up after I accidentally put my milestone in a small beer spill at a party Hopefully this will work out for me too!
Abazel said:
I've tried the method but the right segment of the digitizer still doesn't work.
Click to expand...
Click to collapse
Luckily for me, I was still under warranty, heh. Cause I had insurance. This is my second Droid this has happened to. Hopefully my replacement won't do the same thing.
How many times did you reheat the oven? I tried just once and it didn't help. My phone has been having this problem since January.
decon89 said:
How many times did you reheat the oven? I tried just once and it didn't help. My phone has been having this problem since January.
Click to expand...
Click to collapse
I feel I am on a cooking show
Well, depends on your over. Mainly I was trying to maintain a temp varying between 50-60 c. Mostly 50, but sometimes 60 to up the ante a bit and make sure things stay warm. 30 minutes at least. However, I have to say that I did this twice in 6 weeks, and after that the phone just died again, and I found my warranty card and sent it there to be fixed, and they fixed it, but ruined something else.
If you have the warranty card, take your phone and send it to them Someone told me the method worked and the phone has been good for quite a while, but most of us seem to re-experience the issue after a while.
I've been having these issues for a few days now too, and I think I know why. I've been using this Milestone for 4 months now, and I never had this problem until a few days ago. What I noticed yesterday was that after some acting up, the phone started working properly again. So I ran Touch Test. And I noticed that if I pressed really hard on the top side of the phone(where the logo and the ear piece are located) it started acting up again. My first impression was that the glue holding down the gorilla glass was loose. So I left the phone as usual on my night stand and then I tried the same thing with the pressing on the same area. Guess what? It didn't happen again. Now there seems to be no problem. So I tried to remember what happened yesterday before the screen started acting up, and I remember talking to my wife for a while when I was in my car. Yesterday was a pretty hot day and I was a little sweaty when I talked to her. Now since only that specific part with the earpiece was causing this issue(I tried pressing equally hard on other areas without any problem my guess is that the insulation between the earpiece and the touchscreen has been breached. Maybe because of all the sweat that went in there in time. You know the salt and acids in the swear are known to melt things, and poor quality glue is among them.
How to fix this? I do not know yet, but I do have a good idea that I'd like to share. I want to buy a screen protector foil, and put just a little band around the ear piece. That would probably lower my in-call volume, but since the Milestone is very loud anyway I hope it the quality of the calls won't be too much affected. After that I'll use it in normal conditions again and see if the ghosting happens again.
try completely formatting your SD CARD/PARTITION.
& then reinstalling using (FAT 32/EXT 2, 3, or 4)
sometimes traces from the previous ROM might interfare with touch codecs (maybe)
just trying to help. had similar issue & this is what i did.
bandroid842 said:
NOTE: THIS SOLUTION IS POTENTIALLY DAMAGING AND MAY NOT WORK FOR EVERYONE
PROBLEM: touch screen acts erratic, notification bar keeps opening, screen appears to be touched by someone else continuously (Ghost Touch), and parts of the screen DO NOT RESPOND TO TOUCH.
MY OWN SPECIFIC CASE: I had the Ghost Touch issue for 3 days suddenly without intro, which often used to go away after a reboot or two, then phone worked normally after I removed the battery and left it in a dry area (in a closed drawer between books, no air entering, very dry atmosphere), however the RIGHT SIDE of the screen (Search button, rightmost letters [L and Delete and sometimes ENTER] do not work. If the phone is in normal landscape, you cannot open the notification bar by dragging it normally.
DIAGNOSIS: for some people, the problem is more severe. The Digitiser itself could be malfunctioning and has to be fixed, while for others it could be a true problem with the screen itself. However, for MANY OF US, it is a problem of HUMIDITY. The humidity sensors are causing the phone to act like that. Some say part of this problem happens because the way the keypad affects the phone internally as you open and close it a lot.
SOLUTIONS:
1- To be safe: send the phone to the shop. Ask them to open the phone and apply an extra layer of insulation, in case the digitiser and the screen are okay.
2- If something is faulty, replace it at the shop.
3- MY OWN SOLUTION: based on something I read many times, the solution was to apply DRY HEAT for at least 45 mins. What I did, based on averaging out many experiences I read online, was to remove the SD Card and SIM, remove battery, I heated up a toaster oven for 10 minutes, waited until the temperature was at about 60-70 degrees Celsius, SHUT DOWN THE HEAT, put the phone on its screen on a plate, screen facing down and covered by a cloth to protect it from direct contact with metal, then all inside the oven. The oven is a relatively big one, so phone was AWAY FROM A SOURCE OF DIRECT HEAT. I closed the lid, then every while 15 minutes I would heat the oven for 40 seconds to maintain the temp. This is LIKE (ALTERNATIVE SOLUTION) leaving your phone in the glove compartment of your car while its parked in a sunny spot, to find it really hot in the morning and tough to touch for a while. TO CONTINUE, after the phone was out of the oven (I can't believe I am saying this), I left the phone overnight in a dry area for 8 hours (could need less time). Then, I put everything back in, plugged it, and THE PHONE IS WORKING PERFECTLY NOW!
NOTE that solution number 3 could affect your keyboard buttons if heat is too much. It may cause the glue holding the keys to melt a bit. Be delicate with your keyboard after you restore your phone.
Again, I only did this YESTERDAY. With the exception of some keypad stickiness, the phone is working perfectly now.
I hope this was useful
B.
EDIT: Today is the First of May, phone is still working without a glitch
N.B. Press the Thank you button if you wanna congratulate me on daring to toast my milestone in the name of scientific inquiry
SECOND EDIT: Phone did it again for 2 days. Applied the same method, and it worked again. I think partially it happened because I was in a very humid location.
Click to expand...
Click to collapse
Thank you for that Solution.
It fixed the Issue of my friends MS without other problems
I'll have to try and the oven methode again. My phone has started to really act up again.
I've tried to install new roms, wipe ect. and it doesn't help with the screen.
Have anyone tried to replace the digiziter? They are pretty cheap on ebay
My milestone started freaking out just an hour ago. No more warranty here but I'm not brave enough to do the oven method. Had anybody tried the Rice alternative?

New insight on fixing phantom touches issue on HTC smartphones(a case report)

Greetings. I decided to make this post because I had this issue, found no solution online, but then accidentally stumbled across it by myself and I think that it might be useful for other people too.
I have been using my HTC One M7 for more than 4 years without any serious problems, but about a month ago it went crazy: I was watching a video on Youtube and it suddenly stopped and chaotic stuff started to happen, it looked like someone was touching the screen. That input was so intensive, it rendered the phone unusable, yet I managed to turn on the screen draw test and saw that it was just a single horizontal line that had been constantly "pressed". I looked up on the web and found that many people had similar issue and that it was called "phantom" or "ghost" touches. It seems that the same problem could be caused by several different reasons: bugged software, failed hardware, static electricity or dirt under the screen. Since I hadn't installed any new apps or changed any system settings for a long time it was clear for me that something goofed in the hardware. I planned to change the screen of the phone, but since I am a cheapskate, I decided to try one thing before buying new screen...
Since the issue could be caused by dirt or grease builduing up under the screen, I decided to try to clean it, so that is what I did:
I took a piece of cotton wool and soaked it in alcohol(96% ethanol) and rubbed the edges of the screen thorougly so that as much alcohol as possible get inbetween the screen and the case. Pure alcohol conducts electricity etreemly badly, that is why it didn't cause any short circuts, but I am not sure if the same apply to more dilute alcohol(especially when it dissolves some componens of dirt). After that I left it for several minutes and then took a hair dryer(1500w) and heated the phone with it for 3-5 minutes. Then I let it cool for half an hour and turned it on. To my surprise the phantom touches were gone and the results have been stable for more than 3 weeks( there was only one short episode of phantom touches on the first day).
So that was my experience with that problem. I assume that similar issues could appear in other phones and in some cases this can be the solution. I am really not sure that my theory about how this works is right and that it is safe, so please keep in mind that this method may damage your phone. I would appreciate any feedback or opinions on this. Also sorry for my bad English.

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