Please help me with this touch screen problem:
In my HTC sensation 4G touchscreen has been replaced (together with display) and as a result I've noticed that device no longer registers fast swipes. No lag or other problems, just when you move finger fast - touchscreen fails to register it. In multitouch tests circle disappears during fast movements and in games like fruit ninja there is no line after the finger. Guys who helped me tried several digitizers they had in stock and all of them had this same problem.
My original digitizer and these ones are probably different models because mine was T-mobile and these have HTC written in the middle.
So I wanted to ask did somebody stumble upon this issue and is there a solution?
Or is it possible that all new ones they've tried are bad?
tenow said:
Please help me with this touch screen problem:
In my HTC sensation 4G touchscreen has been replaced (together with display) and as a result I've noticed that device no longer registers fast swipes. No lag or other problems, just when you move finger fast - touchscreen fails to register it. In multitouch tests circle disappears during fast movements and in games like fruit ninja there is no line after the finger. Guys who helped me tried several digitizers they had in stock and all of them had this same problem.
My original digitizer and these ones are probably different models because mine was T-mobile and these have HTC written in the middle.
So I wanted to ask did somebody stumble upon this issue and is there a solution?
Or is it possible that all new ones they've tried are bad?
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i have similar issue. my screen doesn't register any touch on the left half, unless i touch the right half a few times first...:/ my digitizer got changed as well. but after that all is fine...only after i turn off the screen, then on again.....it's a little annoying, but not making my device useless at least.
as for to what's the cause, possibly each phone needs a special digitzer...as for the solution, i tried many, nothing worked...
I read of someone with a similar problem, they took screen apart again and found the wire was slightly pinched, they said they carefully put wires back in place and paid extra Attention to the wires and problem was solved. Now, I personally have not tried it but I did read this fix. Maybe it might help, worth a try? Hope this helps!
Sent from my HTC Sensation 4G
I'm on the same boat. Dropped it and cracked the screen. So I bought a replacement screen and replaced it myself. Its the one with just the HTC in the middle. (I'm T-mobile) Well now, like yours, it sucks at registering touch accurately. I have to press solidly on the screen to swipe screens or to open apps. Texting sucks because i have to press on each letter good or else it picks the wrong letter. I've searched for a solution as many have had this issue but seems like they just returned it for a new one. I cant since i replaced the screen and voided my warranty. I have taken it apart twice and carefully reassembled it making sure everything is good and snug and in the right place.....Still no love....Sucks! If anyone can help, it would be much appreciated as i have hit a dead end with this issue. Thanks.
Fisherman619 said:
I'm on the same boat. Dropped it and cracked the screen. So I bought a replacement screen and replaced it myself. Its the one with just the HTC in the middle. (I'm T-mobile) Well now, like yours, it sucks at registering touch accurately. I have to press solidly on the screen to swipe screens or to open apps. Texting sucks because i have to press on each letter good or else it picks the wrong letter. I've searched for a solution as many have had this issue but seems like they just returned it for a new one. I cant since i replaced the screen and voided my warranty. I have taken it apart twice and carefully reassembled it making sure everything is good and snug and in the right place.....Still no love....Sucks! If anyone can help, it would be much appreciated as i have hit a dead end with this issue. Thanks.
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this is quite different problem. Sensitivity of my display is OK unless you move fast. In your case it seems to be the problem of this exact screen. Try downloading SGS Touchscreen Booster from Play Store and play with settings.
Picked up this phone from CL. The person was claiming that part of the screen is not responding to touch.
I have seen it when I picked it up, but I thought that I will deal with it when I get home.
I was keep playing with the phone almost everything it's working on it except the volume buttons and that horizontal line where the #456 is on the dial pad.
I have removed the battery and noticed that the white sticker it was pink, water damage.
Now I don't know what could be the damage here? There is a shadow across the screen also, but it's not a crack.
I have seen this before on a digital camera, it was the aluminum sheet metal under the LCD, had a smudge across on that aluminum finish too.
Couldn't remove it though. Replaced the screen on the camera and it was as new.
Not sure what could be the problem with the phone?
Should I replace the digitizer, since the LCD shows everything correctly? It could be something shorted internally? I have the phone apart, but I don't see anything wrong. Cleaned all the contact with electronic cleaner, no change.
Any help would be appreciated.
Please post all questions in the Q & A section. Thanks! Thread moved.
Sent from my Galaxy Nexus using Tapatalk 2
I think I would replace the LCD and digitizer as a unit. The slightly higher cost would be easier to accept than having to do it more than once, which would probably end up costing more. Either way is a gamble, though, because that might not be the issue.
Volume buttons are notorious on this phone. I have not known or read about someone fixing them. You can get around the problem for the most part by using software to control the volume, using roms that will restart to recovery or boot loader, and the occasional use of ADB commands, but some bootloop situations require the hardware to work.
Good luck with your project and let us know how it works out.
Not just a pretty Pickle.
I'm thinking of buying the whole LCD as a unit, but that is why I'm asking that maybe somebody could tell me if it's the LCD or other hardware.
The volume button it's together with the upper camera board and I guess it has to be replaced together.
I bought this tablet off Amazon's Warehouse Deals. It came to me dinged and scratched up, but operable. I noticed the touch screen was a little off and would report false touches occasionally, but I didn't think it was anything to worry about. Like a kid in a candy store, I raced to get a new ROM so I could optimize this thing. In the process I unlocked the bootloader, rooted and installed PACman ROM. Ghost touches disappeared--gone for like 3 whole days. I'm ecstatic, and falling madly in love with this tablet. Then I notice the ghost touches coming back after the 5th day I have had it. Now its showing about 3 ghost touches almost constantly in one vertical line (in landscape) on the right side of the screen. Pretty much totally inoperable. I have scoured all ends of google, and most of the time it spits me out here, searching thread after thread of nothing but "RMA it". My questions are:
Is there any fix to this besides shelling out money for a new digitizer? Is that the general consensus that the digitizer is the root of the problem? I know I'm able to return the product, but does anyone know if Amazon is going to give me grief over an unlocked product that was a scratch-and-dent deal anyway? Any way I can re-lock the device? I've seen multiple threads with replies saying "lol didn't you read the blah blah? no way bro", but these were posted a couple months ago. Maybe something new has come up. I guess I just feel sorta rooked because I bought a defective piece of hardware, and now I can't get a refund just because I modified the software.
Tunameltsalad said:
I bought this tablet off Amazon's Warehouse Deals. It came to me dinged and scratched up, but operable. I noticed the touch screen was a little off and would report false touches occasionally, but I didn't think it was anything to worry about. Like a kid in a candy store, I raced to get a new ROM so I could optimize this thing. In the process I unlocked the bootloader, rooted and installed PACman ROM. Ghost touches disappeared--gone for like 3 whole days. I'm ecstatic, and falling madly in love with this tablet. Then I notice the ghost touches coming back after the 5th day I have had it. Now its showing about 3 ghost touches almost constantly in one vertical line (in landscape) on the right side of the screen. Pretty much totally inoperable. I have scoured all ends of google, and most of the time it spits me out here, searching thread after thread of nothing but "RMA it". My questions are:
Is there any fix to this besides shelling out money for a new digitizer? Is that the general consensus that the digitizer is the root of the problem? I know I'm able to return the product, but does anyone know if Amazon is going to give me grief over an unlocked product that was a scratch-and-dent deal anyway? Any way I can re-lock the device? I've seen multiple threads with replies saying "lol didn't you read the blah blah? no way bro", but these were posted a couple months ago. Maybe something new has come up. I guess I just feel sorta rooked because I bought a defective piece of hardware, and now I can't get a refund just because I modified the software.
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Same thing happened to my brother's tf300t. He returned it as defective, but I guess you could replace the digitizer. As far as I saw, it was a hardware problem, so it requires a hardware fix. Sorry
cmendonc2 said:
Same thing happened to my brother's tf300t. He returned it as defective
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Was it through amazon? Do you know if he unlocked it?
Tunameltsalad said:
Was it through amazon? Do you know if he unlocked it?
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Yes it was through amazon. He had unlocked it and installed TWRP and CROM or CM i dont remember.
Tunameltsalad said:
I bought this tablet off Amazon's Warehouse Deals. It came to me dinged and scratched up, but operable. I noticed the touch screen was a little off and would report false touches occasionally, but I didn't think it was anything to worry about. Like a kid in a candy store, I raced to get a new ROM so I could optimize this thing. In the process I unlocked the bootloader, rooted and installed PACman ROM. Ghost touches disappeared--gone for like 3 whole days. I'm ecstatic, and falling madly in love with this tablet. Then I notice the ghost touches coming back after the 5th day I have had it. Now its showing about 3 ghost touches almost constantly in one vertical line (in landscape) on the right side of the screen. Pretty much totally inoperable. I have scoured all ends of google, and most of the time it spits me out here, searching thread after thread of nothing but "RMA it". My questions are:
Is there any fix to this besides shelling out money for a new digitizer? Is that the general consensus that the digitizer is the root of the problem? I know I'm able to return the product, but does anyone know if Amazon is going to give me grief over an unlocked product that was a scratch-and-dent deal anyway? Any way I can re-lock the device? I've seen multiple threads with replies saying "lol didn't you read the blah blah? no way bro", but these were posted a couple months ago. Maybe something new has come up. I guess I just feel sorta rooked because I bought a defective piece of hardware, and now I can't get a refund just because I modified the software.
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Click to collapse
I got a similar situation in the last two weeks. The problem I have is that my TF300T is keeping rebooting by itself. I've googled it and people say most likely it's a hardware issue. I am trying to find a way to see if the device can be reset to factory condition so that I can return it for repair. Looks like we are on a same boat. Hopefully I can find a way to do so.
Just an update on my issue, in case anyone else stumbles across this particular problem. So far I have gone almost a week with no ghost touches. I popped off the back of the device (three guitar picks did the trick), and disconnected the digitizer ribbon cables and reseated them. Problem vanished. My best guess is that the keyboard dock puts odd pressure on the device. That mixed with rough handling is bound to cause some problems.
The problem I have is that my TF300T is keeping rebooting by itself. I've googled it and people say most likely it's a hardware issue
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It could be the power button is jammed? I know mine is really touchy (all I do is tap it with my stylus and screen turns on/off. Good luck!
Sent from my TF300T using xda app-developers app
Tunameltsalad said:
Just an update on my issue, in case anyone else stumbles across this particular problem. So far I have gone almost a week with no ghost touches. I popped off the back of the device (three guitar picks did the trick), and disconnected the digitizer ribbon cables and reseated them. Problem vanished. My best guess is that the keyboard dock puts odd pressure on the device. That mixed with rough handling is bound to cause some problems.
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Click to collapse
Thank you. I just got mine from Groupon as refurbed.. (they did a ****ty job, apparently) Ghost issue about 2 days after getting it out of the box. By then already unlocked and flashed CWM.. sigh.
I'll try your fix tonight. Any chance there is an image of the right connector/ribbon?
Hopefully the image quality isnt too bad. I took an exacto knife and gently pried up the black foam squares, set them aside and worked my magic. Hope this helps. Just be careful with the ribbon cable (duh). Hope this helps!
Sent from my TF300T using XDA Premium 4 mobile app
Tunameltsalad said:
Hopefully the image quality isnt too bad. I took an exacto knife and gently pried up the black foam squares, set them aside and worked my magic. Hope this helps. Just be careful with the ribbon cable (duh). Hope this helps!
Sent from my TF300T using XDA Premium 4 mobile app
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Thank you! I'll try this adventure later this week.
Did this today.. So far, 20 mins on it, and no issues. Typically took about 5-7 mins before. So, crossing my fingers this is gone.
THANK YOU! I can go back to enjoying my tablet
Im in the same boat with this Ghost Touches Issues, and its getting worse, sometimes im working at college and this Ghost appears and the tablet gets almost unusable, Only the Keyboard Dock saves me.
Please if you can give me more detailed instructions i think i would be brave enought to do this surgery to my tf300t, merry christmas!
elestudiante said:
Im in the same boat with this Ghost Touches Issues, and its getting worse, sometimes im working at college and this Ghost appears and the tablet gets almost unusable, Only the Keyboard Dock saves me.
Please if you can give me more detailed instructions i think i would be brave enought to do this surgery to my tf300t, merry christmas!
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i just noticed that when having a ghost touches attack, if i put pressure con the tablet, lime trying to bend it, the touches vanish.
I also have the ghost touches but it seems to only happen when the screen is dirty. As soon as I clean it off, they go away. Would a good screen protector help with that? I may go ahead and try taking off the back and messing with it.
Sent from my AOKP Galaxy S4
I thought mine was fixed, but doesnt seem to be. I technically didnt remove the connectors.. I was nervous, they are WAY fragile. I simply unlocked and pressed firmly on them to attempt to reseat them..
Problem seemed to go away until I used Chrome. Chrome is what seems to trigger odd behaviors for me. I may try another browser and see if it still happens.
I've been dealing with this off and on for about 8 months; asus HAS to be aware of it as my tab has been back twice for this issue (out of warranty now) and I take advantage of their complaint form every month or so.
Here's what I've been working off of (based on personal experience/experimentation):
Re-seating the cables might help for a day or less, but isn't a permanent fix. I even went as far as strategic pieces of tape to hold the flex cables in place and tape across the connectors to encourage them to stay closed.
The first time I popped the back off the larger of the three flexes (with the silver wrap) had partially worked out of the connector on the driver board. Re-seated it and problem disappeared for about a day.
The large copper heat spreader was basically spot contacting the CPU and really wasn't touching the smaller ancillary chips (unit had been running warm for a few months, thought that might make things wonky). I pressed heat shield back down to ensure adhesion, and slightly molded the copper around each chip. Ghost touch gone for two days, unit way cooler running than before.
Here's the interesting one to me. Tonight I noticed that even just hovering my finger close to the screen I can get the 'touch dot' to show; this got me thinking about static. I held the tab in a way that at least one finger of one hand was touching the screen, like towards an edge (out of the active area) while using the other hand to touch the screen. Seemed like one hand was grounding the screen, like a charge couldn't dissipate from the surface.
Isn't this a "capacitive touch' screen? Could it be a matter of grounding?
I too purchased this tablet and dock from Groupon about 4 weeks ago or so as a manufacture refurb. My tablet does the same thing. After about an hour or so use most of the time it starts randomly acting like the screen is being touched. And it appears to only be in the upper right corner area (kinda where the lock screen pattern show up when you unlock it) in landscape mode. Sometimes it may take a little longer of use before it happens. It happens regardless if the dock is plugged in or not. I have figured that if I lock the screen and wait a few seconds and then unlock it. The ghost touches are gone for a while. I first began thinking it may have been a OS issue and hough about rooting and putting a custom rom on it. But from what I have seen on the web it doesnt seem to matter whether its rooted or not. So should I RMA it back or has any one had permenant luck with reseating the cable?
Thanks
ItsDuckie said:
I too purchased this tablet and dock from Groupon about 4 weeks ago or so as a manufacture refurb. My tablet does the same thing. After about an hour or so use most of the time it starts randomly acting like the screen is being touched. And it appears to only be in the upper right corner area (kinda where the lock screen pattern show up when you unlock it) in landscape mode. Sometimes it may take a little longer of use before it happens. It happens regardless if the dock is plugged in or not. I have figured that if I lock the screen and wait a few seconds and then unlock it. The ghost touches are gone for a while. I first began thinking it may have been a OS issue and hough about rooting and putting a custom rom on it. But from what I have seen on the web it doesnt seem to matter whether its rooted or not. So should I RMA it back or has any one had permenant luck with reseating the cable?
Thanks
Click to expand...
Click to collapse
I'd try reseating the ribbons. I kind of doubt it would solve the problem since it's a refurbished with a latent defect. Bad ribbons would strike at random but do not wait for a while before acting up. Look at the glass surface under a magnifying glass and bright light. Hairline cracks cause this after the tab heats up, but you can't always detect them. RMA would be the safe option unless you're really pressed for time.
Ghost touches are back. Noticed I had alot of them when my storage was full. Used a previous recovery (same ROM, just earlier date with less junk installed) and it cut down the frequency of them happening. This is so weird.
I had those ghost touches when 4.2 roms started (CM and AOKP and all of the rest of them. Then someone, I don't remember who had compiled rom with decreased touchscreen sensitivity and ghosting was gone. I think they started with PAC or AOKP, I really don't remember.
Then I went to 4.3 and 4.4 roms and I didn't have one single ghost touch since then. I do noticed sometimes when I hover finger over screen it is registered as touch, but ghosting by itself didn't occur on those roms.
one cent fix
I have an ugly, but effective solution working on my pad right now. It has been in place for about three or four months.
Holding in landscape mode, pulled the bottom left corner back slightly and inserted a penny between the back and the lcd. This put enough torque on the screen to kill all of the ghost touches and it still fits into the keyboard dock. There is an ugly gap where the penny is, but it is now fully functional.
Hope this helps some of you
Since I have had the OPO I have had intermittent issues with the touchscreen requiring reboot to solve. Since upgrading to CM12 the issues seem to have largely subsided but last night I dropped the handset from about 18 inches off the ground. The top left corner of the screen shows a bit of cracking on the glass and now I notice that there is an area in about 1/3 of the touchscreen that is unresponsive. The lower and upper parts of the screen work but now there are some apps and functions I cannot use with the touchscreen and I notice I have having a lot of trouble with the pattern unlock screen as well.
My question is whether the entire digitizer screen will need to be replaced or if there is a possibility that the ribbon connectors or some other connection is possibly causing this issue. I have attached here a pic of the physical damage and a screencast of multitouch test that I ran to demonstrate the area affected. It seems to start around y0=400 and continue to y0=1100 or so which is quite frustrating. In the video I am just running my finger up and down the screen and also across diagonally to demonstrate the problem areas.
Apparently I cannot post Youtube links since I am a new member but the video is on there posted under
"OPO touch screen issues after drop"
Anyone with insight would be much appreciated as I certainly would not like to have to tear this phone down and replace the screen assembly.
I doubt it's a ribbon cable, otherwise your whole screen would be dodgy. I think you need a new digitizer + LCD.
Here's a link for the video you are trying to link to.
https://www.youtube.com/watch?v=hs9pLXvsG2Y&feature=youtu.be
Hope someone here has some good news for you.
My sister just broke her moto x pure.
The display works, however the digitizer do not works correctly. Cannot post pictures because the wallpaper is containing private information and i cannot change it.
She cannot use the entire screen.
For example on the lockscreen, she cannot use the 8. And the other digits works very badly. So she cannot unlock her phone.
What should I replace (screen, digitizer...) and where should I find the replacement part ?
Thank for your help
You'll need to replace both the digitizer + display as they come together. If you are good at repairing phones, you can get the display from eBay or else send your phone to service center if you don't. I would suggest you to send it to the service center.
You could use a USB OTG cable to connect a mouse and thus regain control of the device in order to clear any sensitive information prior to having someone fix it. I have bought and fixed several Moto X pure edition phones with cracked screens for family members. Most of them did alright, but one phone had the screen replaced, then a cow stepped on it. Although it didn't crack, after a while parts of the screen stopped responding to touch. The screen I replaced it with has not been damaged at all, but parts of it have stopped responding to touch as well. Sometimes I wonder if these phones don't have a particularly weak and easily damaged screen. I sometimes get my replacement screens from GadgetFix. If you fix it yourself make absolutely sure that you get a screen+frame assembly. It's just a few dollars more, and totally worth it. And be careful when you transfer the speaker grill trim to the new screen that you don't press hard enough to crack the screen.
Thanks you, I think I will change the screen and the frame.
https://m.ebay.com/itm/For-Motorola...%3A7550533015e0a9cbd9f98f63fff20079%7Ciid%3A2
Is this what I should buy ?
The screen that you posted does not include the frame. I briefly looked on eBay; you might find one with the frame included for a few dollars less than gadget fix, but for simplicity I just linked this one. On the back side of the display you will notice the screw inserts. That is what you need to look for.
https://gadgetfix.com/motorola-moto...screen-touch-screen-digitizer-frame-7447.html
zstricky said:
The screen that you posted does not include the frame. I briefly looked on eBay; you might find one with the frame included for a few dollars less than gadget fix, but for simplicity I just linked this one. On the back side of the display you will notice the screw inserts. That is what you need to look for.
https://gadgetfix.com/motorola-moto...screen-touch-screen-digitizer-frame-7447.html
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Thanks !
Could you point me to a tutorial or a video explaining how to change the screen
I believe that Ifixit has a whole teardown tutorial for this phone. If not just search YouTube for (phone model) screen replacement, watch it a time or two, and then pause it while you do each individual step. If the first video you watch doesn't explain things in an understandable manner just watch another one. It's been a while since I searched for one, but I think there are at least a few good ones.