Fingerprint . - Lenovo P2 Questions & Answers

Anyone having problem with the fingerprint ? My devices not detect it at all . Only pressing it is working to go back to home . To unlock it using fingerprint also not working .

Yes I have been facing this issue since past 5 days.
Suddenly the fingerprint sensor stopped working. My device was encrypted too and the ROM was official Lineage OS 14.1. Firmware - S244.

Yes same is my case. I have to restart it multiple times so as to make it work again.
I guess it a software issue.
It randomly starts working sometimes after restarting it just once and sometimes even after restarting twice or thrice it don't work at all.

Try factory reset !

I am suffering this issue after trying multiple custom 8.1 ROMs, I am going to try flashing back to stock checking the FP works then reinstalling TWRP and going back to custom. Is there a simpler way to do this?

Related

[Q] Note 2 GT-N7100 Accelerometer & gyroscope not working HELP!!!

Hi ive searched high and low but cant find a solution to the problem i have. I have a note 2 international GT-N7100, Ive recently replaced the whole front module as I dropped my phone and broke both the outer glass and the inner screen, (at this point I was running Bobcat ROM 10.1 with persus alpha-36 kernel) both before and immediately after all sensors worked perfectly then a couple of days later the accelerometer and gyroscope stopped working, i searched the web and found that most people suggested reverting back to stock ROM..... I did......and they worked again so i re-flashed Bobcat ROM and they still worked...well for the day, then in the evening they stopped again and havent worked since, i have tried the previous solution of flashing stock ROM/Recovery/UNrooting but still nothing, does anybody have anything for me. Maybe a way to reset the sensors or a file that could help. Thanks in advance.
I have a similar story - was running one of the Cyanogenmod nighties, all sensors working OK. Flashed CM 10.1.3 and they stopped working. Timeline something like this:
1. Flashed cm 10.1.3, no sensors (verified by running Androsensor - reports "waiting for event")
2. Factory reset, nandroid restore back to nightly release - sensors working again
3. Flashed CM 10.1.3 again, sensors working
4. At some point later, sensors stopped working again
Will try the factory reset - re-flash again but interested to get someone else's thoughts on this - anyone else had similar problems with CM 10.1.3 on the N7100?
Possible fix
Here is a solution to sensor problems, especially after flashing custom firmware to the GSN2 is this:
Turn off auto rotate, power off, boot into Odin/download mode. Once there - pull battery and reboot. Turn auto rotate back on, should work fine. Otherwise may be a hardware or firmware issue...Hope this helps somebody.
Warlock959 said:
Here is a solution to sensor problems, especially after flashing custom firmware to the GSN2 is this:
Turn off auto rotate, power off, boot into Odin/download mode. Once there - pull battery and reboot. Turn auto rotate back on, should work fine. Otherwise may be a hardware or firmware issue...Hope this helps somebody.
Click to expand...
Click to collapse
Thanx .. it solved my gyroscope sensor problem ... Don't you know something like that for magnetic sensor?? Mostly I feel it is hardware problem
Warlock959 said:
Here is a solution to sensor problems, especially after flashing custom firmware to the GSN2 is this:
Turn off auto rotate, power off, boot into Odin/download mode. Once there - pull battery and reboot. Turn auto rotate back on, should work fine. Otherwise may be a hardware or firmware issue...Hope this helps somebody.
Click to expand...
Click to collapse
Good night man, i just not understand this.. "take battery off when phone is plugged in usb and Odin reconizes this.... its right? and after i take the battery of the phone still on at download mode, how do i reboot it? just have to take off the usb? after i put the battery again and turn it on plus turno the auto rotate on? that's it? i doing it right? Thanks a lot for your help
I have the same problem and do not know perform the procedure. I would have to send more detailed procedure for my email?
[email protected]
Thank you
In My Note2 rotation sernsor, gyroscope has stoped working. Before helped wipe dalvik cache and cache. After reboot rotation worked to first deep sleep phone, after I must repeated the procedure. But now I check on 3 unoffical roms, and 1 oryginal software and sensor not working. After procedure from this thread - not work again...

issues after updating to NPP25.137-93-2.

This update became available to me last Saturday. I thought it was the April security patch, but after installing the update version stayed on March, I and now I get random reboots and sometime my phone will ask me to input the pattern on lockscreen, not allowing me to use my fingerprint, even if I had done it once.
Anyone else having these issues?
If the phone restarts (or soft reboots) you will not be able to use the finger print sensor until you have entered your pin in first
You may have not noticed your phone restarted or soft rebooted itself
Assuming you have never modified your phone it will be impossible to say why your phone is randomly rebooting without an adb logcat recorded at the time of the random restart
If the problem persists you might have to factory reset your device
This may also happen when you have a 64bit twrp installed, even more likely with magisk.
TheFixItMan said:
If the phone restarts (or soft reboots) you will not be able to use the finger print sensor until you have entered your pin in first
You may have not noticed your phone restarted or soft rebooted itself
Assuming you have never modified your phone it will be impossible to say why your phone is randomly rebooting without an adb logcat recorded at the time of the random restart
If the problem persists you might have to factory reset your device
Click to expand...
Click to collapse
OK, phone was never modified, but I think it might be hard to grab a logcat of it. I don't even have a PC.
Same problem but now it's in a bootloop...

touch is irresponsive after trying rebooting . i was in havoc rom.

I switched off my p2 and then after sometime when i switched it on it got stuck in bootloop .i booted recovery touch was working first time. I rebooted again but again bootloop then again i booted twrp but this time touch didnt worked . i even flashed the stock rom but still touch is irresponsivce. EVERYTHING ELSE IS WORKING FINE WITH A MOUSE. THERE IS NOT EVEN ANY DAMAGE AS I NEVER DROPPED MY P2. PLEASE HELP IF ANYONE KNOW WHAT HAPPENED
Just use gesture or open recent apps and then click on same app....everything would work fine...and yes it is a problem with havoc new update

Phones lock button wont work and its stuck in a bootloop!

So i had lineage os 16 until it started to randomly restart multiple times. so i got the newest available Stock rom for the marlin, had some weird trouble flashing it until it finally worked. the phone booted and i set everything up. after a couple of log ins with apps and downloading it just turned off and started boot looping. Now usually you could enter the bootloader but.. it only stays in that for .5 to 4 seconds before restarting. i cant power off because the home button isnt working and i cant flash a clean rom.
Any ideas???
(currently letting my phones battery drain and leaving it for a bit. hopefully that could help but unlikely)

Bootloop on recovery mode 12.5.1

Yesterday I updated to miui 12.5.1 from OTA, today my phone is bootlooping in recovery, first time ever, I tried that MiAssistant but I does not worked and I have no experience in Xiaomi devices, so I'm a bit lost... I have all my photos and notes in that phone, how I can get it back to life without losing all my data in the progress? Thank you!
Edit for more info: Totally stock, no root, no custom in a single thing, bootloader locked/stock, nothing.
Idont know bro
Try pressing the power button several times. The power button gets stuck sometimes and puts the phone on infinite loop. I had the same issue and this solved it for me.

Categories

Resources