Fingerprint scanner not showing.Backup password doesnt work - Galaxy Note 4 Q&A, Help & Troubleshooting

Hello guys.
My note 4 was working flawlessly until 2 hours ago. I locked it and after 15 minutes of inactivity i pressed the unlock button and the finegerprint scanner wasnt there. I tried rebooting many times and nothing happened.I used the backup password and it doesnt work. Tried up to 30 times and nothing. Cant even reset it via google acc manager.I dont to hard reset because i got many information on viber and whats app and i cant lose them.
Any idea guys?

The SAME thing just happened to me. (same model, too.) How did you fix it, if you did?

If your fingerprint isn't recognised and your backup password doesn't work, you have no choice but to wipe data/factory reset. That's why I always remove my fingerprint when creating a backup, because if for some reason you have to restore, despite having a fingerprint saved, your phone will still tell you that your fingerprint isn't recognised.

I just found the password. The Phone is working normally now but w/o the password its all lost :/

Prototype18 said:
Hello guys.
My note 4 was working flawlessly until 2 hours ago. I locked it and after 15 minutes of inactivity i pressed the unlock button and the finegerprint scanner wasnt there. I tried rebooting many times and nothing happened.I used the backup password and it doesnt work. Tried up to 30 times and nothing. Cant even reset it via google acc manager.I dont to hard reset because i got many information on viber and whats app and i cant lose them.
Any idea guys?
Click to expand...
Click to collapse
If you are rooted then you are in luck as Dr. Ketan has a work around where you just gotta flash a zip from recovery and it will ether reset password and fingerprint or just bypass it so you can enter phone settings and address the issue.
Edit : http://forum.xda-developers.com/showthread.php?p=56934813

Related

[Q] No way to reset password from lockscreen

From my understanding, by entering my pin wrong enough I should get an option to reset my lock screen pin. I'm running CM 10.2 at the moment and I wanted to try this out just to be safe if I ever forgot my pin. But no matter how many times I enteredy pin it only made me wait, I got to about 35 wrong entries before giving up. No option to reset my lock came up. Is this a feature of CM? If not how should I go about fixing it.
If this requires a complete reset and clean ROM flash I'll just wait for 4.4.
Thanks guys!
PS. I still know my password, so i dont need an exploit, and I have an active internet connection.
Could be an issue with with CM 10.2? I am using PA 4.3; after couple tries I get the reset password. Check below images.
Sent from my Nexus 4 using Tapatalk 4
wow it locked me out for 30 sec after 5 failed attempts, no option to change password
backup user data in cwm and reflash rom and restore it?,I think lockscreen security will be in system data

Nougat - Decryption unsuccessful/failed - Lock screen related

Encrypted 6P with Nougat here. A week after flashing the OTA, unlocking the phone with the initial pin code worked fine, but I started having problems unlocking the phone again by swiping. It just wouldn't be swiped out of the way. It became more and more difficult . Had to reboot all the time in order to get access to the phone, through the pin code unlock.
Initially reflashing the OTA and removing 'trusted locations' for smart unlock seemed to do the trick. 10 hours later the phone went into the same problematic lock screen mode again. This time without any trusted locations.
Installed an alternative lock screen to see if that would work. This required disabling the default lock screen...
After the next boot up, the phone says that the password was correct, but 'decryption was unsuccessful" and the data is corrupt. Will need to perform a factory reset.
Does anyone know a way to avoid resetting the phone? Flashing back to the latest Marshmallow did not help.
Thanks so much.
OK, for anyone else finding themselves in this situation: make sure you get your backups off the phone before it's too late.
After a factory reset to Nougat everything is fine, but all my stuff is gone.

OnePlus 5 touch screen stop working

Could someone help me fix my OnePlus5?
Simply from one day to the other the Touch screen stopped working, I can not select any option, being possible only by physical button.
I can not enter Recovery Mode because when I first connected the device I have already entered a password, so I can not type the password because the touch does not work.
I do not know what else to do!!!
I have the OTG cable from OnePlus and even putting Mouse or Keyboard, both do not work.
Would anyone have other suggestions?
Follow the compressed video showing the recovery mode locked by password, touch does not work.
And photo from FastBoot Mode Screen.
Any updates on how you fixed this or what the problem was?
I had to RMA, motherboard was replaced.
I have the same problem
My screen stoped working and the recovery mode is protected with password like the video sent, i live in Brazil and here i dont have the RMA option, can someone help me?
_-^SORCERER^-_ said:
Could someone help me fix my OnePlus5?
Simply from one day to the other the Touch screen stopped working, I can not select any option, being possible only by physical button.
I can not enter Recovery Mode because when I first connected the device I have already entered a password, so I can not type the password because the touch does not work.
I do not know what else to do!!!
I have the OTG cable from OnePlus and even putting Mouse or Keyboard, both do not work.
Would anyone have other suggestions?
Click to expand...
Click to collapse
i was facing this and fixed it.
just use unbrick tool
after the phone boot up and touchscreens still doesn't work, just do a reboot
Tks @Apayah, Will try this procedure, and return with status.
@Apayah, theoretically OnePlus 5 returned works, I will wait a few days to see if the problem continues.
Thank you so much.
edujmjr said:
My screen stoped working and the recovery mode is protected with password like the video sent, i live in Brazil and here i dont have the RMA option, can someone help me?[/QUOTE @edujmjr I used the unbrick process and now works.
Try this process.
Enviado de meu ONEPLUS A5000 usando Tapatalk
Click to expand...
Click to collapse
_-^SORCERER^-_ said:
@Apayah, theoretically OnePlus 5 returned works, I will wait a few days to see if the problem continues.
Thank you so much.
Click to expand...
Click to collapse
Np, all good now?
Apayah said:
Np, all good now?
Click to expand...
Click to collapse
At this moments, yes, I will wait more days.
Thanks for your support in this problem.
_-^SORCERER^-_ said:
At this moments, yes, I will wait more days.
Thanks for your support in this problem.
Click to expand...
Click to collapse
no problem
Apayah said:
i was facing this and fixed it.
just use unbrick tool
after the phone boot up and touchscreens still doesn't work, just do a reboot
Click to expand...
Click to collapse
I'm facing the same issue . My phone was working perfectly fine one minute and then the next, the screen stopped responding including the two capacitive buttons. I rebooted it thinking it mgiht fix it, but now i"m stuck on the lockscreen.
Could you point me to the unbrick tool? Is it this one:
https://forum.xda-developers.com/oneplus-5/how-to/unbrick-tool-oneplus-5-t3648169
Does it do a factory reset or would it fix the unresponsive touchscreen issue without any loss of data?
CoCoGirl886 said:
I'm facing the same issue . My phone was working perfectly fine one minute and then the next, the screen stopped responding including the two capacitive buttons. I rebooted it thinking it mgiht fix it, but now i"m stuck on the lockscreen.
Could you point me to the unbrick tool? Is it this one:
https://forum.xda-developers.com/oneplus-5/how-to/unbrick-tool-oneplus-5-t3648169
Does it do a factory reset or would it fix the unresponsive touchscreen issue without any loss of data?
Click to expand...
Click to collapse
your bootloader unlocked ?, if you're on twrp, then do a back up via mtp.
yes i was use that one, well i was do factory data reset and still touchscreen was didn't work, i was still on twrp so i backing up all my data before i mess with it.
I've also had this issue already had the MB replaced but I had my new MB lost touch for about 5min today so i'll see if it gets worse like it did last time.
Apayah said:
your bootloader unlocked ?, if you're on twrp, then do a back up via mtp.
yes i was use that one, well i was do factory data reset and still touchscreen was didn't work, i was still on twrp so i backing up all my data before i mess with it.
Click to expand...
Click to collapse
I got an usb-c to OTG cable and was able to use the mouse in trwp. I followed a guide online to get past the lockscreen by deleting the lockscreen key files. After I did that, my screen just magically started working again. But now when I boot into the phone, it swipes to unlock but I can't access anything. It looks like it may be encrypted or something? I tried to set a new password to a pin/pattern but it won't save.
When I boot into trwp, it asks me to enter a password but I never had one? I tried using "default_password" and also using the numbers to represent the pattern but still doesn't work. Any idea how I can access my files or get my phone to boot up fully? I'm trying to avoid a factory reset, :crying:
CoCoGirl886 said:
I got an usb-c to OTG cable and was able to use the mouse in trwp. I followed a guide online to get past the lockscreen by deleting the lockscreen key files. After I did that, my screen just magically started working again. But now when I boot into the phone, it swipes to unlock but I can't access anything. It looks like it may be encrypted or something? I tried to set a new password to a pin/pattern but it won't save.
When I boot into trwp, it asks me to enter a password but I never had one? I tried using "default_password" and also using the numbers to represent the pattern but still doesn't work. Any idea how I can access my files or get my phone to boot up fully? I'm trying to avoid a factory reset, :crying:
Click to expand...
Click to collapse
Ahh i never facing like that, try using multirom twrp ? At least at this moment you need to backup you're data.
You mean lockscreen thingy on data/system? There's a 3 files i guess and if you delete that, yes you can pass your screen.
I have no idea if twrp asked for a password, before this happened you're decrypted or encrypted? Password on twrp only for encrypted i think
Apayah said:
Ahh i never facing like that, try using multirom twrp ? At least at this moment you need to backup you're data.
You mean lockscreen thingy on data/system? There's a 3 files i guess and if you delete that, yes you can pass your screen.
I have no idea if twrp asked for a password, before this happened you're decrypted or encrypted? Password on twrp only for encrypted i think
Click to expand...
Click to collapse
I deleted the 5 files in data/system and passed the lockscreen. But it doesn't let me see any information . I think I was probably encrypted since I don't believe I decrypted anything. I can't backup my data in twrp because without entering the password my files have a lot of folders that look like "WDAbwwoefdFZZfde." Before I deleted the keys, twrp asks me to enter my password which is a pattern, same one as when i start my phone. After I deleted the lockscreen keys, trwp asks me to type a password from letters or numbers.
Do you think if I were to dirty flash my rom again without wiping, that it will recreate the lock keys and decrypt my data? Without having to use multirom twrp?
CoCoGirl886 said:
I deleted the 5 files in data/system and passed the lockscreen. But it doesn't let me see any information . I think I was probably encrypted since I don't believe I decrypted anything. I can't backup my data in twrp because without entering the password my files have a lot of folders that look like "WDAbwwoefdFZZfde." Before I deleted the keys, twrp asks me to enter my password which is a pattern, same one as when i start my phone. After I deleted the lockscreen keys, trwp asks me to type a password from letters or numbers.
Do you think if I were to dirty flash my rom again without wiping, that it will recreate the lock keys and decrypt my data? Without having to use multirom twrp?
Click to expand...
Click to collapse
Right seems encrypted problems, did you try multirom twrp yet? Should be on GZR xda thread
My OnePlus 5 stop Work again.
Enviado do meu iPhone usando Tapatalk

Fingerprint reader suddenly stopped- was working this morning!

My phone rebooted on me today while using the flashlight (something that occasionally happens from time to time), and now my fingerprint reader doesn't seem to work.
It says Fingerprint Hardware Not Available when I try to use it from the lock screen. The actual hardware itself is working, as I can still go into settings and try to set up a new fingerprint, it will vibrate and show that I touched the sensor as I move my finger, but then it fails at the end saying "enrollment not completed".
I also can't delete any of my saved fingerprints. It seems to get stuck trying to delete when I click one to remove. I'm thinking some sort of security thing got messed up when it rebooted, and I don't know how to fix it. I am rooted, so I already tried wiping cache and dalvik from TWRP. Not sure how to remove fingerprint data and start over... is there a way to do that?
I'm running the latest PE rom (flashed last week), and no, I didn't flash from Nougat in case anyone thinks this is that common issue some people have. I would try the fix for that, but since it isn't the cause of my problem I'm afraid it might mess things up more. Would really rather not hard reset again, took too long to get my phone set up with everything and paired again.
Dishe said:
My phone rebooted on me today while using the flashlight (something that occasionally happens from time to time), and now my fingerprint reader doesn't seem to work.
It says Fingerprint Hardware Not Available when I try to use it from the lock screen. The actual hardware itself is working, as I can still go into settings and try to set up a new fingerprint, it will vibrate and show that I touched the sensor as I move my finger, but then it fails at the end saying "enrollment not completed".
I also can't delete any of my saved fingerprints. It seems to get stuck trying to delete when I click one to remove. I'm thinking some sort of security thing got messed up when it rebooted, and I don't know how to fix it. I am rooted, so I already tried wiping cache and dalvik from TWRP. Not sure how to remove fingerprint data and start over... is there a way to do that?
I'm running the latest PE rom (flashed last week), and no, I didn't flash from Nougat in case anyone thinks this is that common issue some people have. I would try the fix for that, but since it isn't the cause of my problem I'm afraid it might mess things up more. Would really rather not hard reset again, took too long to get my phone set up with everything and paired again.
Click to expand...
Click to collapse
Reflash PE. If that doesn't work do a clean flash.
Boot into TWRP
Go to advanced>filemanager to acces the files in your phone.
Enter the folder /data/system/user/0
Delete following files: ./fpdata/user.db, settings_fingerprint.xml
Reboot to system and set up new fingerprints with the fingerprint wizard
Everything should work normal

Screen Lock security issue G975F Q Beta 2

Hi, Today I was using my phone and in mid day I realised my phone is not accepting my pin code but finger print is working fine.
I tried many time but pin didnt work and I used my pin code unlock few hours ago. Long story short I have reset my phone from recovery and setup my phone again.
BUT when I try to put a pin lock or password or any other security, my phone gives me error that is "Screen lock was already changed. Try again with the new screen lock." Screenshot attached
Any solution to this?
My phone is G975F on Android Q beta 2 DBT (VAU).
I have done factory reset , installed new firmware but it is not working.
kazim.asghar said:
Hi, Today I was using my phone and in mid day I realised my phone is not accepting my pin code but finger print is working fine.
I tried many time but pin didnt work and I used my pin code unlock few hours ago. Long story short I have reset my phone from recovery and setup my phone again.
BUT when I try to put a pin lock or password or any other security, my phone gives me error that is "Screen lock was already changed. Try again with the new screen lock." Screenshot attached
Any solution to this?
My phone is G975F on Android Q beta 2 DBT (VAU).
I have done factory reset , installed new firmware but it is not working.
Click to expand...
Click to collapse
Same issue with me as well. Can anyone help..
kazim.asghar said:
Hi, Today I was using my phone and in mid day I realised my phone is not accepting my pin code but finger print is working fine.
I tried many time but pin didnt work and I used my pin code unlock few hours ago. Long story short I have reset my phone from recovery and setup my phone again.
BUT when I try to put a pin lock or password or any other security, my phone gives me error that is "Screen lock was already changed. Try again with the new screen lock." Screenshot attached
Any solution to this?
My phone is G975F on Android Q beta 2 DBT (VAU).
I have done factory reset , installed new firmware but it is not working.
Click to expand...
Click to collapse
Was this right after installing the beta 2? When you installed Beta 1 did you leave the system as it was or did you factory reset it? if so can you quantify how many times you unlocked your phone before went south? Was you stuck after rebooting from realizing your pin is not working? Meaning, after the issue and you restarted the phone was you able to enter your pin and proceed, then afterward it stopped?
[edit] The reason why I ask about the factory reset is in one of the other Beta threads people was having a lot of issues and after a factory reset it became near flawless. As of right now I''m monitoring my phone to see if this will happen to me, however after Beta 1 I did a factory reset, so I'm not sure it's a symptom of lingering files. I usally after applying an update to a beta ROM, I factory reset and out of all the times I did it, Android Q was the most buggy and was the only Beta i reverted, but the phone was a Pxiel..
mykenyc said:
Was this right after installing the beta 2? When you installed Beta 1 did you leave the system as it was or did you factory reset it? if so can you quantify how many times you unlocked your phone before went south? Was you stuck after rebooting from realizing your pin is not working? Meaning, after the issue and you restarted the phone was you able to enter your pin and proceed, then afterward it stopped?
[edit] The reason why I ask about the factory reset is in one of the other Beta threads people was having a lot of issues and after a factory reset it became near flawless. As of right now I''m monitoring my phone to see if this will happen to me, however after Beta 1 I did a factory reset, so I'm not sure it's a symptom of lingering files. I usally after applying an update to a beta ROM, I factory reset and out of all the times I did it, Android Q was the most buggy and was the only Beta i reverted, but the phone was a Pxiel..
Click to expand...
Click to collapse
I intalled beta 2. Everything was working fine. But when I restarted my phone, it stopped accepting my 4 digit pin. Then i hard reset the phone and factory reset. But after that it not accepting any new Pin or Pattern to register.
What should I do know as there is no screen lock on my phone
mykenyc said:
Was this right after installing the beta 2? When you installed Beta 1 did you leave the system as it was or did you factory reset it? if so can you quantify how many times you unlocked your phone before went south? Was you stuck after rebooting from realizing your pin is not working? Meaning, after the issue and you restarted the phone was you able to enter your pin and proceed, then afterward it stopped?
[edit] The reason why I ask about the factory reset is in one of the other Beta threads people was having a lot of issues and after a factory reset it became near flawless. As of right now I''m monitoring my phone to see if this will happen to me, however after Beta 1 I did a factory reset, so I'm not sure it's a symptom of lingering files. I usally after applying an update to a beta ROM, I factory reset and out of all the times I did it, Android Q was the most buggy and was the only Beta i reverted, but the phone was a Pxiel..
Click to expand...
Click to collapse
I did a clean install fresh firmware for beta 1, clear cache for beta 2.
I am not sure how many unlocks but i took few days after beta 2. My phone was waorking fine in morning as I unlock my phone in car using pin. But in after noon when I used the pin it showed me wrong pin. Every thing related to security wont work. Cant register finger print or face. But if you do same in secure folder everything will work fine.
Okay if it happens to me I will try to track down how it happened.
You did something and screwed up. A lot of people are using beta 2 already and have not encountered this issue, myself in it. I have done a lot of restarts and I have changed my pin successfully.
NickosD said:
You did something and screwed up. A lot of people are using beta 2 already and have not encountered this issue, myself in it. I have done a lot of restarts and I have changed my pin successfully.
Click to expand...
Click to collapse
What about other people who are affected by it? Read comments in Android 10 beta thread on page after 135. You will find people reporting this issue.
I didnt do anything with my phone just updating with beta.
I'm another that's been affected, had to do a factory reset via bootloader.
Currently stuck on Beta 2, Smart switch won't downgrade.
No security options available and an extremely buggy phone.
A new update has been pushed out. I just received it on my phone. Will be performing a factory reset once the update is installed and will setup the phone from scratch.
ashwinrajsr said:
A new update has been pushed out. I just received it on my phone. Will be performing a factory reset once the update is installed and will setup the phone from scratch.
Click to expand...
Click to collapse
Update me if it has fixed the security issue.
i installed *emergency update* , no wipe,no reset ,things go back to normal
Everything is cool as the phone has not been blocked. Otherwise there is no way to upload the update.
I wonder why they can't release the patch to upload it via ODIN, that would solve the problem.
Wait what !?!?, the same thing happened to me
Even worse - i rolled back to P, where i was able to add a pin but it would always forget it. I ended up going to a samsung center where they changed the board (in warranty), they said my unique device key was corrupted - likely due to internal storage error
So it is a beta problem then
Please provide feedback in the samsung members app. Those that cant, send feedback in the official thread at samsung forums.
Beta 2 is Terrible, having all kinds of Problems with it. Beta 1 was Much Better. Hope another Update comes out soon or will just go back to PIE. G975U S10+
I do have the same problem on my Zenfone 6z. After I relocked my bootloader I couldn't set up a pin. Asus still haven't rolled out an update.

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