Fingerprint sensor not found after factory reset? - Huawei P9 Questions & Answers

My p9 won't recognize the fingerprint sensor and there is no option for fingerprint in the settings menu. Before resetting the sensor stopped working and I couldn't even set a new one. Any ideas what happened?

Try to reset again... and clear the cache too

lomunet said:
Try to reset again... and clear the cache too
Click to expand...
Click to collapse
Tried it, didn't help.

Same happened to me.
Did various factory reset then the menu came back for 1 week and now disappeared again...
Have done at least 15 factory reset but still no sign of menu!
Anyone else with same issue?

Sounds like a hardware problem? It happened before hard reset ?
Enviado desde mi EVA-L09 mediante Tapatalk

My sensor stopped working too. Menu settings for fingerprint is there but not working - cant add new fingerprint. Hard reset not help. Any solutions?

Look developer options-screen lock, if its off turn on.

Ok. Not sure if that made a difference but as I was so annoyed of that issue I tried hard to bend the phone at the level of the sensor and miracle... the sensor menu appeared and I was able to add my fingerprints again!!
Just before that, I did a wipe cache too and a new factory reset. So not sure if the "bending" had something to do with it but it works now
I'll let you know if it continues working in the next few days.
Hope that helps.
Sent from my EVA-L19 using Tapatalk

OP here, I just got my P9 repaired. They said that the issue was with the sensor itself so they changed the whole back cover.

My problem was hardware related. They replaced my phone with new one ?
Sent from my EVA-L09 using Tapatalk

Same think after I do a factory reset wipe cache/data re instal the rom,the fingerprint disappear from the setting

Related

[Q] During touch input "P" key not working

Hello,
I'm having a serious issue with my Incredible S. I bought it 8 months ago. Until last week everything was just fine. I'm using "RCMix3D Runny v4.0" ROM for last couple of months with no problem. Suddenly whenever I wanted to type the "P" key it doesn't work in touch input. All other key's are working fine. But specifically "p" not working. I tried "GO keyboard" as well. Didn't work. But the "p" key works if hold the phone horizontally. So does that mean that specific region of my phone touch screen damaged? But i can scroll up and down over that region. During game play it also works. Any idea folks? Anyone else having this trouble?
Regards.
Try rebooting your device
Sent from my HTC Incredible S using Tapatalk
Try rebooting the phone, or try restoring a nandroid or try re flashing the ROM (clean install).
I did hard reboot couple of times. But still no luck.
Download "touch test" from the market to check your digitization.
Sent from my HTC Incredible S using xda premium
moyorakkhi said:
I did hard reboot couple of times. But still no luck.
Click to expand...
Click to collapse
I also had a problem.. my ph crashed (force close) a lot of times. it came out of nowhere.
so, I cleaned everthing on my ph ( factory reset /wipe data,partition/format )and flash new Rom.. . and got it fixed.
So, u should try that. ( at least factory reset thing.. )
As a simple test if you have a Bluetooth keyboard can you pair it with the phone and see if you have the same problem? This will tell you whether it is the touch that is causing the crash or the key 'p'. HTH.
drcrazy91 said:
I also had a problem.. my ph crashed (force close) a lot of times. it came out of nowhere.
so, I cleaned everthing on my ph ( factory reset /wipe data,partition/format )and flash new Rom.. . and got it fixed.
So, u should try that. ( at least factory reset thing.. )
Click to expand...
Click to collapse
I just did that.. installed the stock ROM by deleting all data, cache etc... i did a factory reset as well... also did the permission fix... but no luck... still "p" not working...
itsbeertimenow said:
Download "touch test" from the market to check your digitization.
Sent from my HTC Incredible S using xda premium
Click to expand...
Click to collapse
Well, with "touch test" i can draw line on all portion of the screen except on the right most side... i'm not sure if it's default...
aerosmith said:
As a simple test if you have a Bluetooth keyboard can you pair it with the phone and see if you have the same problem? This will tell you whether it is the touch that is causing the crash or the key 'p'. HTH.
Click to expand...
Click to collapse
Well, if I type in by holding the phone horizontally.. i can type the letter "p" just fine because the keyboard is in horizontal mode that time... it only doesn't work if i wanna type in holding the phone vertically (normal way)..
I bad that problem with nik's rom,with different keys,but rebooting solved it
Sent from my HTC Incredible S using xda premium
I have a similar problem, some keys dont respond when I try to type something, it happened after a phone restore.
I heard about this problem very often, is this an hardware fault or can be fixed in some way?
Partial Screen Death
From what i see, it could be a case of partial screen fault, where the screen is not able to sense certain part of the screen as it is faulty. Download a touch screen test app like https://play.google.com/store/apps/details?id=com.the511plus.MultiTouchTester&feature=search_result#?t=W251bGwsMSwxLDEsImNvbS50aGU1MTFwbHVzLk11bHRpVG91Y2hUZXN0ZXIiXQ... Go through from top to bottom, and at the faulty part it would "jump". If so, you need a repair.

[Q] Random reboot after lockscreen

Hello,
My phone is almost a month old now and first two weeks were fine no problem at all. Now last few days it has been randomly rebooting itself when I swipe my lockscreen to open. It never does this when I am using the phone only sometimes when I'm unlocking the screen by swiping or just directly go from notifications etc. This happens like twice a day depending how much I use my phone.
I also feel like it first started to happen when I updated it. To be honest I am not sure what it did update. I also installed bunch of apps which I did delete later.
What should I do next? Factory data reset? Or is there a way to see the "crash report" or something to see whats causing it?
tldr; phone randomly reboots after lockscreen, what to do
Thanks.
Stompdaroach said:
What should I do next? Factory data reset? Or is there a way to see the "crash report" or something to see whats causing it?
tldr; phone randomly reboots after lockscreen, what to do
Thanks.
Click to expand...
Click to collapse
After the update if some issues show up is recommended to do a Factory Reset. Start do that.
eclyptos said:
After the update if some issues show up is recommended to do a Factory Reset. Start do that.
Click to expand...
Click to collapse
Agreed. If that does not work, re-flash the phone with a stock FTF to start over. If the problem continues after that, it must be some hardware issue.
eclyptos said:
After the update if some issues show up is recommended to do a Factory Reset. Start do that.
Click to expand...
Click to collapse
I did that and didnt get single reboot yesterday. Too bad I didnt try this earlier. Thanks.
I am having the exact same issue.
Here is that I have done that didnt work.
Reset (vol up/pwr)
reset using red button by sim card
factory data reset
software install using pc companion
However, After each one I set the phone back up how I had it. I had the gmail widget on the lock screen. the phone would reboot at random times right after attempting to unlock. I removed the gmail widget and it hasnt happened since! I sat here locking and unlocking for about 15 minutes and it hasnt rebooted.
IN SHORT TRY TO REMOVE THE WIDGETS BEFORE ANYTHING ELSE
Hope this helps
brianb1998 said:
i am having the exact same issue.
Here is that i have done that didnt work.
Reset (vol up/pwr)
reset using red button by sim card
factory data reset
software install using pc companion
however, after each one i set the phone back up how i had it. I had the gmail widget on the lock screen. The phone would reboot at random times right after attempting to unlock. I removed the gmail widget and it hasnt happened since! I sat here locking and unlocking for about 15 minutes and it hasnt rebooted.
In short try to remove the widgets before anything else
hope this helps
Click to expand...
Click to collapse
it has not rebooted since i originally posted this. It is now 4/25

Home button not working anymore

Has anyone experienced their home button not working on the Nokia X2DS? It's not a hardware problem since it works when the notification tray is open but nowhere else. I think the problem is related to the android device id but I can't be sure. I did a factory reset and it got resolved but after installing Titanium backup (not sure) it has stopped working again. Anyone? I don't want to setup the whole phone again.
xuggs said:
Has anyone experienced their home button not working on the Nokia X2DS? It's not a hardware problem since it works when the notification tray is open but nowhere else. I think the problem is related to the android device id but I can't be sure. I did a factory reset and it got resolved but after installing Titanium backup (not sure) it has stopped working again. Anyone? I don't want to setup the whole phone again.
Click to expand...
Click to collapse
it's something.. u did ..we cant find out why.....cuz no one did what u did......try to remeber what u did.....or just factory reset
For anyone interested, I fixed this with Secure Settings that somehow enabled my Keyguard again. Home button working again.

Huawei P9 Bluetooth turns off by its self / Bluetooth Problems in General

I have this annoying problem with my 2 month old p9!
The bluetooth keeps turning off by its self! I got my LG G Watch R a month ago, and sometimes it happened that it lost its connection, but it came back by its self...
But lately the bluetooth icon in the notification bar just turns off! Randomly....
EMUI 4.1.1. EVA-L09
The only solution google keeps finding is reset your phone... but i don't want to! Its a pain to reinstall everything to my needs...
Is this perhaps a power saving thing that i can turn off?
try to wipe cache partition by turning on the device while holding power and volume up button together, from there choose wipe cache partition,it will solve most of the problems
I tried it, unfortunately it didn't help
Any other ideas?
Another problem with the Bluetooth.
I bought a gamesir g3s gamepad.
After I connected it, I tried a few games.
I noticed a 1sec delay when I pressed the XYAB buttons. The direction pad or the analog sticks worked with no problem, no delay. At first I thought I had a defective gamepad, but after connecting it to my gf note 4, it worked flawlessly.
I paired it again with my p9, and it worked normally.... For a few minutes... Then the delay came back... If I reset the developers option to defaults (I didn't change anything, I just reset it) the delay disappears for a minute, but it comes back...
My question is, is the Bluetooth so bad in this phone or did I get a faulty device?
try update to nougat,if still u have problem after updating so i think u have faulty device.i don't have any problem using Bluetooth in nougat ,before in MM i had some problem but fix by doing wipe cache partition,but still on nougat more stable
OK, but I still didn't receive the update.
I guess I will have to wait a bit...
It is annoying though...
Mic-E said:
OK, but I still didn't receive the update.
I guess I will have to wait a bit...
It is annoying though...
Click to expand...
Click to collapse
manual update ,most of them not receive official update,so we use manual update
spring80 said:
manual update
Click to expand...
Click to collapse
Yea... I just figured it out Downloading the update atm
So after the update everything works ok now. Second day without a disconnect ?
I'm happy :laugh:
Hi there i am having the same problem how did you manually update your system?
You should be able to basically reinstall your system software using the OTA software update app already installed on your phone. Basically it'll reinstall the same OS again on itself without wiping data.
Superdees said:
Hi there i am having the same problem how did you manually update your system?
Click to expand...
Click to collapse
I fund the solution here on this forum. In hicare you need to go under service, and select os early adopters...
Look out up ☺
True, I am on EMUI 5 and Android 7 and no issues.
I have the same issue and I'm on Nougat. Sometimes I find the Bluetooh turned off with no explanation. Wipe of cache partition and data didn't help. Someone else with this problem?
When updated to 7, did you factory rest the phone? If not, you should. It will almost 100% fix the problem.
I am complainig about heating protection showing everi time reach temprature 104fht on my devise p9

About Mi A2 Factory Reset

My Mi A2 was behaving weirdly. Uninstalling apps was making the system to freeze and reboot itself. There were also other small nagging issues. So, decided to do a factory reset.
I did the factory reset from withing setting menu. After confirming to go ahead with the factory resetting, the phone rebooted to a black screen displaying "Erasing" and then it powered off. I waited few minutes thinking that it might have been doing something in the background. But the phone didn't boot itself. I pressed and held the power button and then it booted just fine and I continues with the setup procedure. I have owned several android phones previously, but each one of them rebooted itself after factory reset.
Is this something new/normal to Android One devices? Or did I unknowingly interrupted the resetting procedure? Does anyone have any experience/insight on this issue?
P.S.: I removed my google account and screen-lock before resetting.
P.S.: I did a reset again and this time it behaved as expected and rebooted itself as normally it should.
it might be hardware issue
MIN313 said:
it might be hardware issue
Click to expand...
Click to collapse
Did the factory reset again and this time it behaved as expected and rebooted itself. Anyway, Thanks for the comment

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