Problem after updating to JB .211 and rooting. - Sony Xperia S, Acro S, Ion

A few days after updating my Xperia s from JB.200 to JB 211 and rooting it with Doomlord's rooting kit my touchscreen stopped reacting. It was showing perfectly and I was able to use the phone with MyPhoneExplorer. I also did the following check:
http://forum.xda-developers.com/showthread.php?t=2025736&page=2
and it showed the screen is OK so the problem is in the software.
Had to take it to the shop for repair

isratom said:
A few days after updating my Xperia s from JB.200 to JB 211 and rooting it with Doomlord's rooting kit my touchscreen stopped reacting. It was showing perfectly and I was able to use the phone with MyPhoneExplorer. I also did the following check:
http://forum.xda-developers.com/showthread.php?t=2025736&page=2
and it showed the screen is OK so the problem is in the software.
Had to take it to the shop for repair
Click to expand...
Click to collapse
If it was a software problem then a simple re flash was enough.

pannekoek28 said:
aww sad problem. But what is your question exactly? You returned it to the shop, so we can't help you anymore.
Next time try reflashing the ROM (.211) using flashtool
Click to expand...
Click to collapse
Well actually the purpose of this thread was to warn other fellow members of such a problem.
As for your advice, I did flash it twice, once flashing it again to 211 anda second time "downgrading" back to .200, both didn't fix the bug.

Did you wiped everything before flashing ?

AlinTheron said:
Did you wiped everything before flashing ?
Click to expand...
Click to collapse
Now that you mention it I did UNMARK the data, catch and apsslog hoping I wont need to strat from scratch. could it be that the bug was hiding somewhere in them?
Another solution I encounterd was this:
This is a common problem with many touch screen phones. There are about three reasons this can happen that I know of:
1. Hardware issue. Needs to go in for repair. Hopefully under warranty still.
2. Needs to be re-flashed with the OEM ROM. This is not likely, since you've already Hard Reset, but worth a try.
3. The EASIEST and FIRST thing to check is to run a 'business card' around the edge of the screen between the case and screen. Dirt or other objects can easily get wedged into that area and hold the screen pressed down. This would prevent a press from any other area of the screen. Also, a screen protector that has shifted might cause this. Hopefully this is it, as it's a simple fix!
Click to expand...
Click to collapse
source http://www.fixya.com/support/t13801425-xperia_s_touch_screen_not_responding

Always do a fresh clean flashing of rom. That will eliminate all the hidden bugs.

isratom said:
Now that you mention it I did UNMARK the data, catch and apsslog hoping I wont need to strat from scratch. could it be that the bug was hiding somewhere in them?
Another solution I encounterd was this:
source http://www.fixya.com/support/t13801425-xperia_s_touch_screen_not_responding
Click to expand...
Click to collapse
Next time wipe everything before flashing.

isratom said:
...run a 'business card' around the edge of the screen between the case and screen. Dirt or other objects can easily get wedged into that area and hold the screen pressed down. This would prevent a press from any other area of the screen.
Click to expand...
Click to collapse
The problem with this suggestion is that the Xperia S, like the vast majority of modern smartphones, uses a capacitative touchscreen which does not operate by detecting physical displacements of the screen surface. If it did then people wouldn't have problems using touchscreen phones wearing cloves and such like. Older style resistive touchscreens did work that way, but they're not widely used in smartphones any more and certainly not in the Xperia S. So while the advice offered might actually be effective, it can't be for the reason stated.

Related

Display problem in 8525

Hi guys,
My phone's display seems to be sliding downwards.. The bottom most part of the screen is slowly showing up on the top.. Seems like its sliding down and going round to the top .. Any ideas why is this so.. is it something to be worried about... or can it be easily fixed..
Cheers..
rajibu said:
Hi guys,
My phone's display seems to be sliding downwards.. The bottom most part of the screen is slowly showing up on the top.. Seems like its sliding down and going round to the top .. Any ideas why is this so.. is it something to be worried about... or can it be easily fixed..
Cheers..
Click to expand...
Click to collapse
what rom you have?
do you drop your phone a lot? i dropped my home phone like 5 times and the LCD screen on it is going down on it, i way just have to install a new rom.
Zacch88 said:
what rom you have?
do you drop your phone a lot? i dropped my home phone like 5 times and the LCD screen on it is going down on it, i way just have to install a new rom.
Click to expand...
Click to collapse
lol.....you drop your phone, causing problems with the lcd......and you are going to fix it by flashing a new rom??
XtreMe_G said:
lol.....you drop your phone, causing problems with the lcd......and you are going to fix it by flashing a new rom??
Click to expand...
Click to collapse
i was just making sure it was not the rom he had installed, sorry if you thought i was talking about redoing the rom and that would fix it but their is no way a rom could fix that he prolly dropped his phone 1 to many times
Yeah, i have dropped it a number of times.. but never it happened like this. this has been happening since a week now.. I have WM6 Premuim V2 by Dutty.. Its been on my phone since almost a year now.. Recently I had installed WM6.1 S64 Lite.. But that was very unstable and slowed the phone down.. So now I am back on WM6 Premuim V2 by Dutty..
Hope this helps..
You should DL the htc maintenance manual and try reconnecting the lcd cables. I had whitescreen issues and bottom of screen jumping t top so I bit the bullet and opened hermes up. was considerably easier than expected ( though do yourself a fovour and get the torque set (torque 6) ) and had it pulled apart then put back together in less than an hour. there is a lot of unneeded dissassembly in the maintenance manual (just take apart whats needed) but read thoroughly and do step by step and you should have no problem. Hope this helps you out...cheers....
my htc the toutch doesn't work
the toutch screen don't work. how can i fix it?
pcfg said:
the toutch screen don't work. how can i fix it?
Click to expand...
Click to collapse
smash it against your face until it does work.
Repeat until it does.
GldRush98 said:
smash it against your face until it does work.
Repeat until it does.
Click to expand...
Click to collapse
hehehe that will work for sure.
Yep.. it was the issue with LCD.. also my screen would go fully white and nothing would happen after that.. That happens everytime I slide it.. It is found that the slide strip is the issue.. so that has to be replaced for it to solve..

Phantom Soft Key Issue

I wanted to get the opinion of the devs who make all of the ROMS for this device. Below is my experience and my theory:
I have had the phantom soft key issue on every incarnation of the GSII software. I un rooted and went all the way back to the beginning. I used each rom version till the issue occurred, then I let the phone update to the next ROM version and repeated the process. Every single un rooted update had the same issue and then every single Rooted ROM all ROMS for the ET4G were tried and the issue occurred.
Strange part is it came out of nowhere. I have had and have been flashing for an entire year without issue and one day all of a sudden... BOOM. I don't think it is as simple as the signal issue. I think it has to do with flashing as well. Unless this is happening to someone who has never rooted their device, I think something in the roms we flash trigger the issue which is related to signal.
Has anyone known anyone who has never rooted their device and has had the issue? By the way, the store gave me a brand new factory OEM screen and the issue still occurs.
Gorguts said:
I wanted to get the opinion of the devs who make all of the ROMS for this device. Below is my experience and my theory:
I have had the phantom soft key issue on every incarnation of the GSII software. I un rooted and went all the way back to the beginning. I used each rom version till the issue occurred, then I let the phone update to the next ROM version and repeated the process. Every single un rooted update had the same issue and then every single Rooted ROM all ROMS for the ET4G were tried and the issue occurred.
Strange part is it came out of nowhere. I have had and have been flashing for an entire year without issue and one day all of a sudden... BOOM. I don't think it is as simple as the signal issue. I think it has to do with flashing as well. Unless this is happening to someone who has never rooted their device, I think something in the roms we flash trigger the issue which is related to signal.
Has anyone known anyone who has never rooted their device and has had the issue? By the way, the store gave me a brand new factory OEM screen and the issue still occurs.
Click to expand...
Click to collapse
I had the issue straight out of the box when we still had gingerbread. I hardly get it anymore besides on occasion
Sent from my SPH-D710 using Tapatalk 2
Elw00d said:
I had the issue straight out of the box when we still had gingerbread. I hardly get it anymore besides on occasion
Sent from my SPH-D710 using Tapatalk 2
Click to expand...
Click to collapse
Right outta the box before rooting it?
I personally think its hardware related with, either over time the screen moving and the heating up of the device causing phantom button presses... this only recently started happening to me and after i wipe screen with cloth while its turned off it goes away. for awhile... idk haha
I disabled the hardware capacitive keys and use the software on screen buttons. Problem solved
Sent from my SPH-D710 using xda premium
As said above, I had this issue on Gingerbread..out the box, no root. It'd press menu by itself lol, always gave me WTF moments. I'm on ICS now, and no problems at all.
Crazy, ok. Well I got the answers I was looking for. Thank you everyone for your info. Note 2, here I come.
Yup, happens here too. Menu key goes nuts when charging.
FYI just cause you want to get a developers opinion does not give you permission to ask a question in the development section.
Papa Smurf151 said:
FYI just cause you want to get a developers opinion does not give you permission to ask a question in the development section.
Click to expand...
Click to collapse
I will begin chastising myself at once....
Gorguts said:
I will begin chastising myself at once....
Click to expand...
Click to collapse
Picture please ^^^^^^^^^
I have this issue on out of box uprooted and other sget4g were okay for some time after rooting and flashing custom made roms... They too fell prey to the mysterious phantom presses... Ahhh the horror.
My fix was....... To
I have had this issue several months and now have a good solution. Use this info posted by elijahbrown on Page 464 in PA thread I believe. http://forum.xda-developers.com/showthread.php?p=34125394
" Disables menu key!
Ooookay..
Go to system/usr/keylayout
Select sec_touchkey. kl and edit as text. You'll see key 217 is search. Delete that line of code or put a "#" in front of it to turn it into a comment. Save the file.
Re boot and let meet know.
Just curious as to why you want to do this so bad? "
# comment out menu and search keys. Save file and Set permissions.
Then head over to the play store and get Button Savior. I paid for the advanced features and am very happy. Have to keep the phone until may 2013, sprint claims liquid damage so no replacement.
Button Savior on screen hidden pop up menu buttons works great and no more phantom presses menu or search pop ups ever again! 

[Q] "Phantom Touch Input"

PLEASE SEE BOTTOM OF OP FOR UPDATES
-----
Greetings all,
[Backstory]
I've been flashing ROMs for about a year now. I started off with Virtuous Team Gingerbread and the Sense 3.x ROMS. I had no issues.
Then I moved to CM7, and MIUI, also on Gingerbread. No problems.
I've been using the CM9/CM10 ROMs since they appeared for the Incredible 2, from AOKP and Aeroevan, respectively.
Here is where the problems start.
[Problem]
On ICS and JB ROMs, I get what I have dubbed (there is probably a better name for it) "Phantom Touch Input".
At first I thought this was caused by normal bugs and glitches in the ROM. I did my best to deal with it. Usually a simple lock/unlock would solve the issue, temporarily.
So what would happen? Without touching the screen, I would get the long press menu to show up, and then the screen and capacitive buttons would freeze. Or the screen would start to slowly half scroll to the side, and again, freeze.
The most annoying part is when I am typing on the phone. I have tried other keyboards, be it from the MIUIv4, or the default keyboards of 4.0.x, 4.1, or 4.2. All the sudden random keys are pressed, and continue to be pressed, even when my fingers are nowhere near the screen.
However, no one else seems to have this issue, so it looks like I am the lone wolf here with this problem.
Can anyone provide insight? A possible fix? Or am I forced to deal with this on all 4.x ROMs?
---
UPDATE 1: Issues also occurred on CM7.2, so I may be facing a hardware issue.
UPDATE 2: Issues occurred in 4ext Touch. Looking around on YouTube, others (Incredible S users) have similar issues.
Nearly confirmed as a hardware issue.
Check Page 2 for video links.
[::AP::] said:
Greetings all,
[Backstory]
I've been flashing ROMs for about a year now. I started off with Virtuous Team Gingerbread and the Sense 3.x ROMS. I had no issues.
Then I moved to CM7, and MIUI, also on Gingerbread. No problems.
I've been using the CM9/CM10 ROMs since they appeared for the Incredible 2, from AOKP and Aeroevan, respectively.
Here is where the problems start.
[Problem]
On ICS and JB ROMs, I get what I have dubbed (there is probably a better name for it) "Phantom Touch Input".
At first I thought this was caused by normal bugs and glitches in the ROM. I did my best to deal with it. Usually a simple lock/unlock would solve the issue, temporarily.
So what would happen? Without touching the screen, I would get the long press menu to show up, and then the screen and capacitive buttons would freeze. Or the screen would start to slowly half scroll to the side, and again, freeze.
The most annoying part is when I am typing on the phone. I have tried other keyboards, be it from the MIUIv4, or the default keyboards of 4.0.x, 4.1, or 4.2. All the sudden random keys are pressed, and continue to be pressed, even when my fingers are nowhere near the screen.
However, no one else seems to have this issue, so it looks like I am the lone wolf here with this problem.
Can anyone provide insight? A possible fix? Or am I forced to deal with this on all 4.x ROMs?
Click to expand...
Click to collapse
Not exactly sure, I would say its hardware if it happens on all the roms. Have you went back to CM7 or MIUI since this problem started? I would revert back to one of them and test for a couple of days to see if the problem continues. If the problem is only active in ICS or JB then someone else will have to give you a hand on a resolution.
ThePhantom97 said:
Not exactly sure, I would say its hardware if it happens on all the roms. Have you went back to CM7 or MIUI since this problem started? I would revert back to one of them and test for a couple of days to see if the problem continues. If the problem is only active in ICS or JB then someone else will have to give you a hand on a resolution.
Click to expand...
Click to collapse
Ok will do when I have the chance.
Thanks for the speedy reply.
But let's say it is a hardware issue...
Do I unroot/restore/whatever and bring it back to Verizon?
Thanks.
[::AP::] said:
Ok will do when I have the chance.
Thanks for the speedy reply.
But let's say it is a hardware issue...
Do I unroot/restore/whatever and bring it back to Verizon?
Thanks.
Click to expand...
Click to collapse
Yes if the phone is still under warranty
I'm so fresh you can suck my nits...
Flashed CM 7.2
My home button didn't work, but that doesn't really matter.
I still experienced the same issues.
On a side note, wow CM7.2/Gingerbread is smooth....damn kernel. But stock 2.3.x is so ugly
Anyways, it seems like I should just "start clean".
I'm not sure what that entails - not just a full wipe...something more...tips?
[::AP::] said:
Flashed CM 7.2
My home button didn't work, but that doesn't really matter.
I still experienced the same issues.
On a side note, wow CM7.2/Gingerbread is smooth....damn kernel. But stock 2.3.x is so ugly
Anyways, it seems like I should just "start clean".
I'm not sure what that entails - not just a full wipe...something more...tips?
Click to expand...
Click to collapse
I use 4ext recovery myself, and I do a "full wipe" by format all partitions/factory data reset, then I see a lot of people also say wipe cache and dalvik so I throw that in as well, it don't take long but just in case a factory reset don't get them I just do it...lol. Hope that helps, and that may clear up some bugs with ICS and JB roms if you weren't doing that before. Just make sure you do a backup before wiping everything. Wouldn't want you to be without a phone if some process hiccups.
Thanks for the info.
Should I do anything with my SD card? It shouldn't affect ROM performance, but a wipe wouldn't be a bad idea, yes?
[::AP::] said:
Thanks for the info.
Should I do anything with my SD card? It shouldn't affect ROM performance, but a wipe wouldn't be a bad idea, yes?
Click to expand...
Click to collapse
I doubt that the SD card would affect the performance, but as long as you have backups of everything you can do as you please, backup backup backup. You don't want to lose everything, trust me I have seen bad things happen to guys that don't backup, and I have learned from experience as well.
Right right I know.
I'll try 4ext on a fresh ROM and see how things go.
Not a good idea to flash the touch version of 4ext in light of my issues.
Did a Nandroid, hit back, then screen input froze. The on-screen time is updating, but are the capacitive buttons are lit up but do not respond/give haptic feedback, let alone the touch screen itself. Power button just moves to the power menu, where I again cannot select anything.
Pulling battery :/
This is why I will never (want to) purchase a phone without a removable battery.
So looks like my issue isn't software related. (This issue can in no way be software related [or even caused by], right?)
I've had the phone for over a year...but I guess I'll try with Verizon.
*sigh*
What a pain.
Looks like I am certainly not alone.
(Better video) http://www.youtube.com/watch?v=25CaiveQoQg
(Similar) http://www.youtube.com/watch?v=kANVkc-Sk74&feature=related
I'm just really pissed off. And there isn't a phone in the market that I want.
That looks like possibly a bad digitizer, you can replace that fairly cheaply if you are out of warranty. That would be my best guess, and keep in mind I am no expert. Here is a link so you can see the process:
http://www.youtube.com/watch?v=LQL9gakQyuI
ThePhantom97 said:
That looks like possibly a bad digitizer, you can replace that fairly cheaply if you are out of warranty. That would be my best guess, and keep in mind I am no expert. Here is a link so you can see the process:
http://www.youtube.com/watch?v=LQL9gakQyuI
Click to expand...
Click to collapse
That is what I was thinking.
I'll also see if I can milk anything out of Verizon. I'm already an unhappy customer, given the lack of ICS, especially when promised.
Yep, digitizer.
http://forum.xda-developers.com/showthread.php?t=1399085
Good luck with Big Red, and let us know if you get it resolved.
ThePhantom97 said:
Good luck with Big Red, and let us know if you get it resolved.
Click to expand...
Click to collapse
Thanks, I'll keep everyone updated.
I'm sure I'm not the only one who has had issues. Hopefully word spreads, especially to those still under warranty who are suffering from a faulty digitizer.

Touchscreen problems

So I am having this problem since 4.4.3 and 4.4.4 update. Once or twice a day the screen won't respond to touch. Should I use a custom kernal or this might be a hardware problems.
Sent from my Xperia U using XDA Free mobile app
Ameer Shimoga said:
So I am having this problem since 4.4.3 and 4.4.4 update. Once or twice a day the screen won't respond to touch. Should I use a custom kernal or this might be a hardware problems.
Sent from my Xperia U using XDA Free mobile app
Click to expand...
Click to collapse
How do you fix it when it happens? Do you have to restart? Does the touch fail or does the tablet freeze?
Honestly not very sure what you could do, besides maybe trying a factory reset? That would work if a software problem.
What about cleaning it and removing any screen plastic guard.
U can say it freezes then I have to restart it. This is happening after two factory resets.
Sent from my Xperia U using XDA Free mobile app
Firmware fix: http://forum.xda-developers.com/showthread.php?t=2428133, read and follow the op very carefully.
...if it does not help, or you think it may be internal:
http://forum.xda-developers.com/showthread.php?t=2535835
mdamaged said:
Firmware fix: http://forum.xda-developers.com/showthread.php?t=2428133, read and follow the op very carefully.
...if it does not help, or you think it may be internal:
http://forum.xda-developers.com/showthread.php?t=2535835
Click to expand...
Click to collapse
OK I'll try..
Sent from my Xperia U using XDA Free mobile app
Same issue here, I think.
Just purchased a refurbished Nexus 7 (official factory refurbished) from Amazon. My touch screen works great for a day or so, but eventually touch stops working altogether and sometimes requires a hard-reboot (holding the power for 10-seconds). Downloaded a touch screen test app which works great (even with ten fingers on the screen), tracking well on all parts of the screen. It's just like the touch atrophies over time until it stops working.
First thing I did to the tablet after getting it was to unlock the bootloader and load stock/rooted 4.4.4. Is there some way to update the touchscreen firmware that I'm missing?
I don't want to open this thing up and muck with the hardware for fear of damaging it. I'm holding out hope that there is a software fix, because rebooting fixes it right up.
nebhead said:
Same issue here, I think.
Just purchased a refurbished Nexus 7 (official factory refurbished) from Amazon. My touch screen works great for a day or so, but eventually touch stops working altogether and sometimes requires a hard-reboot (holding the power for 10-seconds). Downloaded a touch screen test app which works great (even with ten fingers on the screen), tracking well on all parts of the screen. It's just like the touch atrophies over time until it stops working.
First thing I did to the tablet after getting it was to unlock the bootloader and load stock/rooted 4.4.4. Is there some way to update the touchscreen firmware that I'm missing?
I don't want to open this thing up and muck with the hardware for fear of damaging it. I'm holding out hope that there is a software fix, because rebooting fixes it right up.
Click to expand...
Click to collapse
Look 2 posts up from yours.
mdamaged said:
Look 2 posts up from yours.
Click to expand...
Click to collapse
Oops - I looked at the link to the hardware fix, but not the firmware fix. Thanks, I'll give this a try first.
Firmware fix above seems to have alleviated the issue for me. At least I haven't seen the issue over the last several days, which is good news. Hopefully that holds up over the long term. :good:

Fixed.. Ghost Touch ?? Automatic Touches Problem ?

I found bug in Samsung Galaxy A70.
When i using My Device there is Going to be automatic touches..?
Bug Fixed
Dial - *#2663#
Click on TSP FW Update (General)
wait a bit
Your Device will Restart
Done.
Enjoy....
Thanks to @hanjien
Rohan1996 said:
I found bug in my Samsung Galaxy A70.
When i using My Device there is Going to be automatic touches..?
Anyone Can Tell me how can i fix issue without reset my phone....
Click to expand...
Click to collapse
Same here! All of a sudden my screen goes crazy, as if three fingers are touching the screen at the same time. Quick fix: restart the phone.
I waited reporting the issue to see if more people have it, or it is just my phone.
Hmmm... now that I think about it, I better wait rooting the phone and tripping Knox in case of fixing this problem under warranty...
Same problem on my phone. I have a glass screen protector, I thought maybe it's because of the screen protector. Sometimes locking and unlocking the phone also solves it for me.
I also have a glass screen protector, but I experienced the problem also without protection, since I applied the screen protector a day later.
Locking and unlocking the phone seems to "solve" it as well indeed.
Hmmm... seems we got an issue here, Samsung!
I have also addressed this topic to the online shop I bought the phone.
Ghost touches did happen to me during the first three or four days after purchase. Now however, they are completely gone.
I've had this happen to me two times in three days on two different A70's (one time on each phone). Most likely software issue.
yes me too, i can't even type fast bcs it will trigger a ghost touch between the two alphabets i'm trying to type, feels like an old man for typing slowly lol
mullik said:
yes me too, i can't even type fast bcs it will trigger a ghost touch between the two alphabets i'm trying to type, feels like an old man for typing slowly lol
Click to expand...
Click to collapse
Give it a few days. Restart your device every other day and press the malfunctioning spots on the display a little harder. It worked for me.
give this a try
dial
*#2663#
tsp fw update
mine work like a charm no ghost touch since this.
hopefully will work permanently
hanjien said:
give this a try
dial
*#2663#
tsp fw update
mine work like a charm no ghost touch since this.
hopefully will work permanently
Click to expand...
Click to collapse
thank you! confirmed working on mine, dude u are awesome ??
mullik said:
yes me too, i can't even type fast bcs it will trigger a ghost touch between the two alphabets i'm trying to type, feels like an old man for typing slowly lol
Click to expand...
Click to collapse
yep me too, my solution was locking the screen and unlock it again.
ardhityaraharja said:
yep me too, my solution was locking the screen and unlock it again.
Click to expand...
Click to collapse
the fix https://forum.xda-developers.com/galaxy-a70/help/ghost-touch-t3927693/post79538651
hanjien said:
give this a try
dial
*#2663#
tsp fw update
mine work like a charm no ghost touch since this.
hopefully will work permanently
Click to expand...
Click to collapse
I must say the ghost touches are much less after using the phone for a while. I also just tried your tip, and hope it will be completely gone now!
hanjien said:
give this a try
dial
*#2663#
tsp fw update
mine work like a charm no ghost touch since this.
hopefully will work permanently
Click to expand...
Click to collapse
This code worked for anyone else?
Sent from my SM-A705FN using Tapatalk
Same issue here I am facing also ... my Samsung only 6 days old... please guide me to replace the device with new one ....thanks
---------- Post added 18-05-2019 at 12:18 AM ---------- Previous post was 17-05-2019 at 11:59 PM ----------
Captain Beretta said:
Same here! All of a sudden my screen goes crazy, as if three fingers are touching the screen at the same time. Quick fix: restart the phone.
I waited reporting the issue to see if more people have it, or it is just my phone.
Hmmm... now that I think about it, I better wait rooting the phone and tripping Knox in case of fixing this problem under warranty...
Click to expand...
Click to collapse
Same issues I am facing... should I opt for exchange this device with new one
hanjien said:
give this a try
dial
*#2663#
tsp fw update
mine work like a charm no ghost touch since this.
hopefully will work permanently
Click to expand...
Click to collapse
working great for me
A70 touch problem solved
guys i think my problem got solved do this thing*
1) switch off the phone completely*
2) press volume up key plus power key until Samsung logo appears you'll get into boot loader mode*
3) to move up an down use volume keys to select options press power key now you have to select WIPE CACHES partition*
4) then select run graphics test*
5)then do system reboot
give this a try it worked for me an let me know if it's works for you or not.
*
thanks*
Regards*
I'm also having the same issue. Tried the 1st solution. (https://forum.xda-developers.com/galaxy-a70/help/ghost-touch-t3927693/post79538651#post79538651). However my phone didnt restart automatically so I restarted manually. I'll update the results. Thanks a lot.
Got a software update this morning which seems to have fixed it. At least I got to type this comment faster :laugh:
guys, I don't know if it's a "ghost touch", but if I get my finger really close to the display it acts as if I touched it on that spot - but I don't feel like I've touched the screen at all... is it really sensitive or is this the ghost touch issue?

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