P20 Pro: Random ghost movements after every restart? - Huawei P20 Pro Questions & Answers

After just having received the Android Pie 9.0 update yesterday, I still have the same issues as since I bought this phone:
Being that after a restart the phone is unusable, as it starts doing whatever it wants, as if there were shadow presses and swipes on the display.
These totally random, involuntary movements, as if I were touching the screen, even though I don't. Those occur so fast that I can only stop it (for a limited time) by pressing the power button (turning off the display and all actions), are totally not something I have ever experienced on another phone before, not even with OnePlus.
I took my case off just in case this would cause pressure on the phone, but it still happens without the case. I propped the phone up so that I definitely don't touch or cover any sensors, but it still happens.
It seems some internal sensor is broken, as this issue still persists after updating to Android 9.0. Unless this might be related to the Nova launcher?
Unfortunately I don't see a way of recording this issue without compromising my personal information, so I can only describe it.
I hope I can resolve this through a device swap through my carrier, but I doubt it. Has anyone else experienced this issue?

knowledgeworker said:
After just having received the Android Pie 9.0 update yesterday, I still have the same issues as since I bought this phone:
Being that after a restart the phone is unusable, as it starts doing whatever it wants, as if there were shadow presses and swipes on the display.
These totally random, involuntary movements, as if I were touching the screen, even though I don't. Those occur so fast that I can only stop it (for a limited time) by pressing the power button (turning off the display and all actions), are totally not something I have ever experienced on another phone before, not even with OnePlus.
I took my case off just in case this would cause pressure on the phone, but it still happens without the case. I propped the phone up so that I definitely don't touch or cover any sensors, but it still happens.
It seems some internal sensor is broken, as this issue still persists after updating to Android 9.0. Unless this might be related to the Nova launcher?
Unfortunately I don't see a way of recording this issue without compromising my personal information, so I can only describe it.
I hope I can resolve this through a device swap through my carrier, but I doubt it. Has anyone else experienced this issue?
Click to expand...
Click to collapse
Is there a third-party one-button lock screen app installed on your phone? There may be conflicts.

bobo have a dream said:
Is there a third-party one-button lock screen app installed on your phone? There may be conflicts.
Click to expand...
Click to collapse
No, there is no necessity for this.
In the fact issue occurs also in Safe Mode as well as after cleaning the system cache (wiped through the menu which is available for soft reset / wiping all data).
The issue got only more and more severe this week and sometimes temporarily froze the screen / inputs and did lead to error messages on the camera app, making it impossible to take photos temporarily.
Huawei referred me to a local repair shop and I will hand in the phone for repair by early next week, once I have organised a replacement phone.

knowledgeworker said:
No, there is no necessity for this.
In the fact issue occurs also in Safe Mode as well as after cleaning the system cache (wiped through the menu which is available for soft reset / wiping all data).
The issue got only more and more severe this week and sometimes temporarily froze the screen / inputs and did lead to error messages on the camera app, making it impossible to take photos temporarily.
Huawei referred me to a local repair shop and I will hand in the phone for repair by early next week, once I have organised a replacement phone.
Click to expand...
Click to collapse
Good luck!

Related

[Q] Screen inaccuracy issues

I know that this has been a fairly common complaint about the Nexus One but i'm wondering, roughly what percentage of people actually have this issue? To clarify, i mean the problem whereby touching the screen in one place is actually registering elsewhere on the screen.
I've had this problem since buying my n1 and having to constantly turn the screen off and back on again was driving me nuts. Finally i sent the unit back to Vodafone for repair and they in turn sent it to HTC to be fixed. So yesterday i got it back with an enclosed statement along the lines of "we have fixed your fault etc..".
Three minutes into using the damn thing and the fault crops up again. So much for that! To be fair to Vodafone they are sending out a replacement unit now but of course i'm concerned that even that will have the same issue.
What are the odds?
Here is the same.
To developers: the fact that resetting the screen fix the problem makes me to ask if there isn't a way to make the screen re-calibrate itself every X seconds/minutes, without shut off and on the screen every time. Seems to be until now the only solution to this extremely annoying issue.
It really is a bizarre one. I've seen people discussing whether it's a hardware or software issue but nobody seems to have a definitive answer. If it were a hardware problem, surely it would be constant/permanent? If it's a software issue i would have thought that somebody would have bug-fixed it by now? Especially as it seems so prevailant.
I'm stumped!
Other than this one problem though i am completely in love with this phone. The device itself feels solid, durable and pleasant to use. Android is improving all the time and it always impresses when you demonstrate to the un-initiated what the device is capable of. So close to perfect...but not quite!
EDIT... This from the wiki.. "- Q5: Sometimes my screen registers touches in incorrect places, and I need to turn the phone off and on to make it work correctly again
A: This is a hardware problem, nothing can be done about it. Nexus One's digitizer sucks.
Ho-Hum.
I have experienced this problem on android 2.1 ever since upgrading 2.2/2.2.1, I haven't had the problem. I'm very happy with my screen
Sent from my Nexus One using XDA App
msavic6 said:
I have experienced this problem on android 2.1 ever since upgrading 2.2/2.2.1, I haven't had the problem. I'm very happy with my screen
Sent from my Nexus One using XDA App
Click to expand...
Click to collapse
That suggests a software problem although i have had it on 2.1, 2.2 and now 2.2.1. I would say that it has happened to me within three minutes of using the phone, 50% of the time within that three minute window. In other words it's cropped up in half the texts/emails i have sent where i have had to do the screen off/on thing to complete the message.
Very annoying.
It has to do mostly with the way people hold their phones, the possibility of registering false touches - including, for example, touching the screen with fingers that aren't completely dry. Some have the issue more than others.
HW issues still can have SW workarounds sometimes. I'm not sure if it's the case. HW and SW need to be analyzed to find one, if exists.
There is no "calibrating" capacitive touchscreen. Resetting its controller might have effects like missing touches and other random screen misbehavior (for example - if the controller is tracking fingers, resetting it would cause it to lose the tracking).
Since getting my phone back from 'repair' the issue is less frequent, suggesting that it's not a usage problem as i'm obviously still using the phone in the same manner as before. Instead it seems that various devices suffer from the problem in varying degrees.
I suppose if i knew what they had actually done to the phone while it was being tended to it might help us discover why the frequency of the problem has been reduced. I know that the digitizer wasn't replaced as the phone came back with the same screen protector on it as it had when i sent it off. That being said, they obviously did something. I just don't know what!
Most probably replaced the phone's MB.
Try upgrading to the latest radio - the issue will probably not be 100% solved, but now I only get it maybe once a month or so...
I may tell them not to bother sending out a replacement. It's happening far less often since it was returned and (going by the poll results), there's a good chance that the replacement could actually be worse than this one is now.
Perhaps the 2.3 update will jar something loose.
ATTENTION PLEASE!!
after flashing miui latest ROM i've never had touchscreen issues anymore in over 20 hours of hard usage (also with the phone in charge!!).
I don't believe is a coincidence, developers please ask miui developers if they have integrated a code to fix this issues.
Thanks!
Sent from my Nexus One using XDA App
pyngwie said:
ATTENTION PLEASE!!
after flashing miui latest ROM i've never had touchscreen issues anymore in over 20 hours of hard usage (also with the phone in charge!!).
I don't believe is a coincidence, developers please ask miui developers if they have integrated a code to fix this issues.
Thanks!
Sent from my Nexus One using XDA App
Click to expand...
Click to collapse
could you please download Multitouch Visible Test
http://www.appbrain.com/app/multitouch-visible-test/com.batterypoweredgames.mtvistest
and report back?
xyellx said:
could you please download Multitouch Visible Test
http://www.appbrain.com/app/multitouch-visible-test/com.batterypoweredgames.mtvistest
and report back?
Click to expand...
Click to collapse
I have already restored cyano 6.1.1.
However, about "multitouch issues" I mean inaccuracy, the fact that the touch is recognised in another point of the screen (particularly when you press the bottom part of the panel). I didn't verified the axes-inversion issue, but I'm almost sure that it persists.
The "touch inaccuracy" is nothing else than the usual axis-swapping thing. When accidental dual touches (palm/holding fingers/water/etc) happen, the digitizer goes nuts.
Jack_R1 said:
The "touch inaccuracy" is nothing else than the usual axis-swapping thing. When accidental dual touches (palm/holding fingers/water/etc) happen, the digitizer goes nuts.
Click to expand...
Click to collapse
I don't think so....I pay attentions when the screen goes crazy. I'm absolutely sure that (in charge for example) my touch is ONE.
The only times I was able to trigger the "screen nuts" effect, were when I was typing 2-fingered, and fast - making it register dual touches. Moreover, sometimes a single touch with a single finger is reported as series of touches. Once it happens, it stays until screen off.
Jack_R1 said:
Moreover, sometimes a single touch with a single finger is reported as series of touches. Once it happens, it stays until screen off.
Click to expand...
Click to collapse
I mean this....since I moved to MIUI this is not happened anymore.
Since I uninstalled Htcime the inaccuracy issues seem less so far! Almost only with the phone under charge ...much much better than before! Dunno why....
Sent from my Nexus One using XDA App

Touch Screen Issues

I've started to have touch screen issues the past few days.
Any idea what may cause it?
Sometimes, when I touch the screen, say in settings, I touch one item, but a different item is selected somewhere randomly on the screen.
Happens in TWRP as well. If I select options to wipe, it will select others, and then it doesn't swipe over to execute the action.
No ideas? What would make touches appear where I don't touch, even on TWRP?
I tried the keyboard calibration on HTC's keyboard.
Any ideas? Screen protector?
It comes and goes.
I can't believe no one else is having this issue now.
I don't do stupid things with my phone, like drop it, put it in my pocket and sit on it, and wash it with soap and water.
Since I've started running Lollipop, it appears that my case is causing this issue. I've never had this problem before.
However, I updated my wife's phone to Lollipop Sense and now she is having the same issues with a different case.
Take the cases off, and they work more responsively.
I can only chalk this up to being a Lollipop issue, and hope it will be fixed soon.
mcwups1 said:
I can't believe no one else is having this issue now.
I don't do stupid things with my phone, like drop it, put it in my pocket and sit on it, and wash it with soap and water.
Since I've started running Lollipop, it appears that my case is causing this issue. I've never had this problem before.
However, I updated my wife's phone to Lollipop Sense and now she is having the same issues with a different case.
Take the cases off, and they work more responsively.
I can only chalk this up to being a Lollipop issue, and hope it will be fixed soon.
Click to expand...
Click to collapse
I opened another thread about a similar issue I'm having after Lollipop. My gesture launch randomly stops working and I have to reboot. No other issues for me though. I have an anti-glare screen protector on mine, but had no issues before the update. I've thought about a factory reset to see if that would cure what ails.
I'm on tmo but have the same exact issues. This is what i've found so far...
I turned on the developer options and turned on show pointer. This will show you where the touches are landing.
If you scroll down slowly, you can see most of the touches are in line (up and down) and not random on the screen.
I've removed all programs that have screen overlays (screen filter, twilight etc)
I've removed the cases thinking they might be causing the issue, but removing them only slightly improved the issue I thought...
Sometimes its hard to reproduce the effect, its not consistent. So this leads me to believe that it could be a process that's running in the background that calls attention at the moment you're touching the screen, and then refocuses the screen to your point of contact. And in between it thinks you're moving your finger when you really aren't.
In any event, I can't find the exact cause of this. But, it definitely started after the update to lollipop. I had none of these issues before. I even got the phone exchanged because I believed the digitizer went bad or something. But this issue exists on my original phone, its replacement, and now on my wife's current phone and that phones replacement (across 4 phones).
I'm currently working on my wife's replacement (4 or 5 non-oem programs installed) and continue to have the problem. But it is not consistent as I can't readily reproduce it.
What i've done to try and learn more is when I see the screen pointer light up in random places, I keep pressure on the screen so I can observe where the screen is registering contact. It almost looks as if it's trying to pull down the shade. Whether it be because of the dual points of contact and it thinks we're swiping down, or because of another program that is stealing focus for whatever reason.
If anyone else has insights into this, please let us know as this is more than frustrating! I keep calling people in hanouts with a lot of people and they aren't happy about it lol.
Also for reference, we're using ADW ex launcher instead of Stock HTC Sense. But even when I remove ADW (uninstall) and run sense, it continues to happen. So it's not that.

Xperia X Performance (F8132) Accelerometer failure & Screen Auto-rotate irresponsive

Xperia X Performance (F8132) Accelerometer failure & Screen Auto-rotate irresponsive
Hi All,
I got an issue bothering me since I bought Xperia X Perfomance (F8132) Mid June.
The auto rotate function failed after a while but everything goes fine after reboot.
When it fails, I use "Xperia Service Menu" -> "Service Tests" -> "Accelerometer",
then all X,Y,Z are zero and the ball just sticks and freezes at mid.
I bought from Taiwan and I can find 15 more people having the same symptom with me on 2 forums
( http://mobile01.com and http://gamer.com.tw ).
Hence I don't think it's only me and it's a common issue or common yield problem for Xperia X Perfomance.
I post here because I'd like to find more people with the same issue and raise the attention of SONY in order to find the root cause (i guess it's either over-heat causes this or accelerometer yield issue) and give a patch.
Now I'm using a APP "Rotation Control" to workaround this, but all photos cannot records correct orientation data and no auto-rotate is kinda inconvenient.
For a flag-ship and high-priced cellphone for SONY this year, it is very disappointing to me. :crying:
Version: 35.0.A.1.227 and 35.0.A.1.238 both occur
huangjs said:
Hi All,
I got an issue bothering me since I bought Xperia X Perfomance (F8132) Mid June.
The auto rotate function failed after a while but everything goes fine after reboot.
When it fails, I use "Xperia Service Menu" -> "Service Tests" -> "Accelerometer",
then all X,Y,Z are zero and the ball just sticks and freezes at mid.
I bought from Taiwan and I can find 15 more people having the same symptom with me on 2 forums
( http://mobile01.com and http://gamer.com.tw ).
Hence I don't think it's only me and it's a common issue or common yield problem for Xperia X Perfomance.
I post here because I'd like to find more people with the same issue and raise the attention of SONY in order to find the root cause (i guess it's either over-heat causes this or accelerometer yield issue) and give a patch.
Now I'm using a APP "Rotation Control" to workaround this, but all photos cannot records correct orientation data and no auto-rotate is kinda inconvenient.
For a flag-ship and high-priced cellphone for SONY this year, it is very disappointing to me. :crying:
Version: 35.0.A.1.227 and 35.0.A.1.238 both occur
Click to expand...
Click to collapse
I also have that problem. No more auto-rotation after a while (1-2 days) . Only a reboot fixes that
DiLeon said:
I also have that problem. No more auto-rotation after a while (1-2 days) . Only a reboot fixes that
Click to expand...
Click to collapse
Thank you for letting us know.
It shows it's not a regional FW issue but a global HW or FW one.
I wonder if SONY knowing this. If not, we need to address this and push SONY to work it around.
And if it is not workaroundable, SONY will have a big problem.
I have the same issue on my Xperia X (F5121) bought in Sweden. Haven't checked the accelerometer but the behaviour is the same and reboot is only fix.
I have not had any problems with auto rotation, my accelerometer works fine but my touch screen is messed up
Sent from my F8131 using XDA-Developers mobile app
HellRoot said:
I have not had any problems with auto rotation, my accelerometer works fine but my touch screen is messed up
Click to expand...
Click to collapse
Same
HellRoot said:
I have not had any problems with auto rotation, my accelerometer works fine but my touch screen is messed up
Click to expand...
Click to collapse
Can you specify "messed up"? I've had issues with the touch screen also, mostly that it registers a tap while I'm scrolling resulting in involuntary tapping on links. Also it often takes a while to start scrolling, as if the screen has a hard time recognising the swipe.
I have the same problem. The accelerometer stop working 15 minutes after reboot.
Help me verify if is caused by a third party app or not.
Use your phone in safe mode for a while.
I'm from Hong Kong, the accelerometer and its auto-rotation of my x performance has the same problem that it won't work until i reboot my phone.
I dont think that is caused by a app crashing when the problems occuring in all around the world.
The issue didnt come to me when I was not yet update to 35.0.A.1.282. Please notice this problem SONY. It seriously affected the satisfaction from user of the phone from your brand.
There is a topic on the Sony support forum - see here: http://talk.sonymobile.com/t5/Xperia-X-Performance/Accelerometer-stops-working/m-p/1158490#U1158490
At least they are aware of the problem. As soon as it happens again on my phone, I will send them my logs. I will report any development...
It seems that I uninstall the AR effects in my phone and reboot, it works again
Rotation fails
Hello guys,
I have the same problem. Yesterday it worked fine, but today, the auto rotate don't work. Very disappointing. Only a reboot can help but not every time.
Sony has to do something with it.
Gyroscope/Auto-Rotation Issue
Hey everyone,
I'm also having this same issue, but only since the most recent update from late September. When trying to make a pic display as fullscreen by rotating the phone, nothing happens, unless I reboot the phone. Then within day or two, it starts happening again. When I go to camera it loads up and STAYS in landscape mode, no matter what I do, even closing it out and clearing out the cache & force stopping it then reactivating it. It seems like a software issue that Sony needs to address PRONTO!
It appears another thread here on XDA is dealing with the same issue. I tried shenlong85's idea and it seems to have fixed the issue, but I need another day or so to make sure. If you don't hear from me by Sunday (10/23), assume it's been fixed. Hopefully the Nougat update we're all about to get any day now will permanently fix it!
The memory uninstall updates only prolong the issues. Seems like the firmware issue earlier on.
Nougat... When are u coming?
shenlong85 said:
The memory uninstall updates only prolong the issues. Seems like the firmware issue earlier on.
Nougat... When are u coming?
Click to expand...
Click to collapse
Well, we'll see. I am giving my XP 'til Sunday........if no more auto-rotate issues by then, then I will consider your idea to be gold. lol Of course, once we get Nougat, I'm hoping it will ensure that the issue never comes back period. As of this time, the issue has NOT returned.
I bought my Xperia X Performance from Kogan who sells imports in Australia from Asia and I have the exact same issues with my orientation and touchscreen. However my jumpy touchscreen only seems to occur while charging.
RockStar2005 said:
Hey everyone,
I'm also having this same issue, but only since the most recent update from late September. When trying to make a pic display as fullscreen by rotating the phone, nothing happens, unless I reboot the phone. Then within day or two, it starts happening again. When I go to camera it loads up and STAYS in landscape mode, no matter what I do, even closing it out and clearing out the cache & force stopping it then reactivating it. It seems like a software issue that Sony needs to address PRONTO!
It appears another thread here on XDA is dealing with the same issue. I tried shenlong85's idea and it seems to have fixed the issue, but I need another day or so to make sure. If you don't hear from me by Sunday (10/23), assume it's been fixed. Hopefully the Nougat update we're all about to get any day now will permanently fix it!
Click to expand...
Click to collapse
I tried shenlong85's idea, but less than 24 hours after trying it, I switched my phone from Portrait to Landscape to view a 16:9 widescreen pic I had in my Album, and it WOULD not auto-rotate the pic. So unfortunately this "trick" doesn't work either.
Just have to hope Sony includes a fix with the Nougat update we're about to get any day now from them.
I'm noticing now too that once the Auto-Rotate function stops working, so does Smart Call Handling. Have to swipe screen once again to take calls. Hurry up Nougat!! lol
I'm having the same issue and the only help I'm getting from Sony support is to factory reset my device :\ I'm hoping Nougat makes it's way to our devices soon. I really like this phone and this is a pretty big issue to have.
SpencerElliott said:
I'm having the same issue and the only help I'm getting from Sony support is to factory reset my device :\ I'm hoping Nougat makes it's way to our devices soon. I really like this phone and this is a pretty big issue to have.
Click to expand...
Click to collapse
I agree Spencer. And yes Sony Mobile told me the same thing. I'll do a repair (which yes, includes a factory reset) only IF Nougat doesn't fix it. They say we're getting it "in or close to October", so I'm guessing it's gotta be coming any day now. Hopefully they include a fix with Nougat though and I don't have to do that. Getting tired of this BS with Sony. My Z3 had an issue where if I turned on Stamina Mode, it would 1) mess with my MMS (group/pic/video) text messages.........you don't know how many times I had to ask ppl to resend those to me and how much that sucked lol 2) Cause a "random" battery drain. Only fix was a factory reset. I FINALLY got wise and realized it was SM and kept it off. Found a great app called 360 Hibernation Master that did what SM was supposed to do but better, MINUS the buggy BS. But OF COURSE it doesn't work on any X series phone (at least not my XP), so I'm stuck with SM now. At least Sony Mobile FINALLY fixed that bug with SM so that's not an issue anymore. lol
It is a big issue, and it makes me not want to keep buying their phones.

Issues with Fingerprint Scanner

I've had my Note9 (Tmo) since release, so about 2 weeks now. Usually a quick tap of my finger on the fingerprint scanner and the phone immediately jumps to life and I'm on the home screen. But today it's acting erratically. Now it takes like 5 or 6 presses for it to register, and that's only after I turn the phone on first (it won't skip sleep and go directly to the home screen anymore).
I tried a rebooting, recreating my prints, as well as making sure the scanner is wiped perfectly clean, and that worked... But only for a little while, the issue has come right back.
Anyone else seeing similar issues?
Do other sensors work as expected?
On my previous Note8, when sensors stop working due to hardware fault, the fingerprints also did not work.
BTW I have not experienced the same issue on my Note9 yet.
Are you using a theme? If so that could be the issue. Uninstall theme and try fingerprint again.
Wash your hands.
I also have this issue, it's pretty annoying. On the lockscreen, the phone says "fingerprint-sensor not responding, try again later", and that's it. Tried wiping cache from the recovery menu, nothing.
Try typing *#0*# into the dialer and go to sensors test, should be able to determine if your finger print reader is faulty or not there.
Try cleaning the fingerprint scanner or using a wet wipe on your finger. As the lack of moisture is probably what is causing this issue. It happened to me a few times in HK.
I have the same issue.
My scanner is now telling my "fingerprint wet." But my fingers aren't wet, and I wiped the scanner down several times. Like the OP says, it works for 1 or 2 swipes, then won't recognize my fingerprint.
I'm having the same issue with my Note9. In my case, the problem happens ONLY if I had my phone in my pocket more than 1 minute, the fingerprint sensor just won't work, it's not like it doesn't recognize it, it's dead. I have to wait about 10 seconds putting my finger on the sensor 'til it works. I have tried everything. I'm pretty sure it's something in the software related to the phone being in my pocket (not because the phone's been idle), because when I go to bed and put my phone on the table, the next morning I just grab my phone and immediately the fingerprint sensor takes me to my home screen, no problem.
Namuna said:
I've had my Note9 (Tmo) since release, so about 2 weeks now. Usually a quick tap of my finger on the fingerprint scanner and the phone immediately jumps to life and I'm on the home screen. But today it's acting erratically. Now it takes like 5 or 6 presses for it to register, and that's only after I turn the phone on first (it won't skip sleep and go directly to the home screen anymore).
I tried a rebooting, recreating my prints, as well as making sure the scanner is wiped perfectly clean, and that worked... But only for a little while, the issue has come right back.
Anyone else seeing similar issues?
Click to expand...
Click to collapse
Do you guys have solution to this I been having this issue for a month or so now and i think it is getting worse.
Hi guys, be brave and call Samsung. The phone is under warranty.
They will collect it and drop it off for free, after repairing it and putting your phone back to water and dust resistant.
It took me about 10 days all together, if not less.
florin_stann said:
Hi guys, be brave and call Samsung. The phone is under warranty.
They will collect it and drop it off for free, after repairing it and putting your phone back to water and dust resistant.
It took me about 10 days all together, if not less.
Click to expand...
Click to collapse
I've had samsung repair experienced before my Galaxy s8+ it took them about 5 business days turn around repair it was just software issue.. But with this fingerprint if it's just software glitch or setting i rather do that first but if not I might have do warranty claim.. it always take 2-3 tap for me to work on the fingerprint this is way way slower than my S9+.. Did you have fingerprint issue?
It is definitely not software. Days i have spent uninstalling apps and themes and testing and then resettimg it all and so on and so forth!
It seemed at the beginning that a factory reset is enough, but next day it would start again.
It finally gave up and i have called Samsung, as i do not buy insurrance for my phones and they sorted me out.
I knew it was not software when i have booted the Note into safe mode and it behaved just the same.
skyethur said:
I've had samsung repair experienced before my Galaxy s8+ it took them about 5 business days turn around repair it was just software issue.. But with this fingerprint if it's just software glitch or setting i rather do that first but if not I might have do warranty claim.. it always take 2-3 tap for me to work on the fingerprint this is way way slower than my S9+.. Did you have fingerprint issue?
Click to expand...
Click to collapse
Sorry, forgot to quote you in my reply above.
Anyway, now after the repair, the Note responds diferently, it unlocks fast as hell using the fingerprint.
Try erasing all your fingerprints and re-registering them all over again. As sometimes your fingerprint settings maybe corrupted by a OS update.
florin_stann said:
It is definitely not software. Days i have spent uninstalling apps and themes and testing and then resettimg it all and so on and so forth!
It seemed at the beginning that a factory reset is enough, but next day it would start again.
It finally gave up and i have called Samsung, as i do not buy insurrance for my phones and they sorted me out.
I knew it was not software when i have booted the Note into safe mode and it behaved just the same.
Click to expand...
Click to collapse
Mine isn't like that. Fingerprint sensor works once the device is already in use but once in sleep mode for awhile it will take 2-3 taps for it to unlock and it doesnt happen all the time so My issue is sensor sensitivity and it seems to me that the sensor is not getting any power once in sleep mode to save battery that's why it is less sensitive that's just my opinion. But I already made a ticket to samsung and unfortunately the repair center which I dont trust at all the uBreakifix do not have the sensor in stock. So I may have to call in to ship out my phone.
---------- Post added at 10:50 PM ---------- Previous post was at 10:49 PM ----------
iceepyon said:
Try erasing all your fingerprints and re-registering them all over again. As sometimes your fingerprint settings maybe corrupted by a OS update.
Click to expand...
Click to collapse
I have already re-register my finger about 20 times but seems to happen over and over.
note 9 fingerprint issues
Namuna said:
I've had my Note9 (Tmo) since release, so about 2 weeks now. Usually a quick tap of my finger on the fingerprint scanner and the phone immediately jumps to life and I'm on the home screen. But today it's acting erratically. Now it takes like 5 or 6 presses for it to register, and that's only after I turn the phone on first (it won't skip sleep and go directly to the home screen anymore).
I tried a rebooting, recreating my prints, as well as making sure the scanner is wiped perfectly clean, and that worked... But only for a little while, the issue has come right back.
Anyone else seeing similar issues?
Click to expand...
Click to collapse
i am and i wish i knew how to fix it
*#0*# sensor test says that the RESET test has failed. I'm getting random reboots while not using the device.
willhemmens said:
Try typing *#0*# into the dialer and go to sensors test, should be able to determine if your finger print reader is faulty or not there.
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The test shows RESET: Failed. Everything else is a PASS. It must be a hardware problem. I am getting random reboots while on standby when the fingerprint sensor is turned on.

Intermittent loss of touch response

Just retired my 2 XL and got a like-new 4 XL. Loving it so far, except one nagging issue.
Randomly the top 30-50% of the display stops registering taps (touch). It's easy to fix by turning the display off then back on, but I'm concerned it may be a hardware issue.
Interestingly, when this happens and something that is full screen and scrollable such as a contact list or app drawer is in the foreground, I can drag from below the "no touch area" to the top of the screen, but I can't start a drag at the top. So, it can sense touch in the troubled half, it just won't register taps.
I have done tons of searches. I see lots of people saying Android 12 had touch issues out of the gate, but was supposedly fixed. I disabled the block_untrusted_touches. I have checked any app that has draw over other apps permissions. I have tried with high touch sensitivity on and off. I have paid attention to running apps when it happens. I installed a LogCat reader looking for touch related issues when the problem occurs. I tried safe mode, but due to the intermittent nature of the problem, and the fact that safe mode disables most functionality, it really wasn't a good long term test.
I have yet to pinpoint this.
Sometimes it doesn't happen for a day, other times it's multiple times per day. So trial and error takes time because just when you think you licked the problem, it rears it's ugly head again.
I'm running LineageOS 19.1 at the moment (which I had also run on my 2XL with no issues). It is rooted. No apps force closing or crashing.
Has anyone else seen this on the 4XL?
Definitely interesting, never heard of that. I had some touch issues, specially if the display gets wet where it register touch, but poorly to the point I need to restart the device and dry out the screen. Though in my case the creen is completely cracked, so I suspect that's the cause as it didn't happened before.
Though I had a similar to yours but with the battery.
The problem was that the phone would randomly shut down, and that would happen more often when it was on my pocket.
This made the phone very un stable as sometimes I would have the phone completely off and didn't even know about it.
So I decided to open it and have a look at it. It turn out that the problem was the flex cable that connected the battery with the logic board, it was just slightly tore on one side, but just a tiny I couldn't nearly see it, I had to use another phone to zoom in.
As it was torn, depending on the way the phone was changed the force the gravity made over the cable, causing that sometimes it not enough energy got the phone, causing it to shut down.
Once I replaced it, it never happened again, not a single time.
Maybe you have a similar problem, though as you are rooted and using a custom ROM, that may be the reason, my case was extremely rare.
anyway, good luck

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