04-30-2016 12:56 AM
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  1. hopefulfarm's Avatar
    Ok, ever since my Sprint Note 4 received the 5.1.1 update, i'm having very odd and random lock screen issues.

    I have always used the fingerprint security. The phone is what, about a year old now since release? Never had issues. Now with 5.1.1, sometimes the fingerprint scanner doesn't work. The only way I can unlock the phone is with my backup password. One night I was locked out for 40 minutes as the phone was just freaking out.

    I believe the issue has started with me enabling trusted devices recently. I am wondering if anyone else is having similar issues with their lock screen and using trusted devices or the fingerprint scanner, or both (as I am)?

    I guess I should try disabling trusted devices and see if the issue pops up again.
    08-20-2015 11:23 AM
  2. Ntchwaidumela's Avatar
    So, did you disable Trusted Devices? If so, did that solve the problem? You also might want to Clear Cache Partition. I've always done that after an OS update and haven't had any problems afterwards.
    08-20-2015 11:09 PM
  3. AlyarbankHQZ's Avatar
    I have similar problems with my note 4. After the 5.1.1 update I noticed the screen rotation was erratic in some apps. Then the Fingerprint scanner and the Backup Password failed (Password was correct). I did a factory reset/wipe and it seemed ok afterward. Then the same sort of rotation problem, but now the behavior is different. It will not recognize my print to unlock the screen but the backup password will unlock the screen, but will not work to access the Fingerprint scanner settings!. Samsung is really screwing up lately. I just got through waiting 7 weeks for an update to fix the last 5.0.2 for my note pro 12.2. I sure hope they fix this quick. The problem has to do with secure storage for the Fingerprint Scanner and Security settings. The interface is corrupt and doesn't send reliable data strings.
    toenail_flicker likes this.
    08-21-2015 07:42 AM
  4. pduffer's Avatar
    I gave up trying to use the fingerprint to unlock long ago as it only worked about 10% of the time. Tried it again after Lollipop but same dismal results. Now I have the Gear 2 Neo smart watch and it handles my phone unlocking quite well.

    Sent from my SM-P900 using Tapatalk
    08-21-2015 10:00 AM
  5. Shamrock_627's Avatar
    I get similar results. I can turn on display, but it doesnt come on for like 5 seconds. Then I can click on an app, and entire OS will crash, booting me out to lock screen.
    H3aTeRzz likes this.
    08-21-2015 11:12 PM
  6. Nitro211K's Avatar
    I get similar results. I can turn on display, but it doesnt come on for like 5 seconds. Then I can click on an app, and entire OS will crash, booting me out to lock screen.
    Same here.
    08-22-2015 02:13 PM
  7. hopefulfarm's Avatar
    I posted in a few other threads about lock screen issues, but for me it was the fact that alongside the 5.1.1 update, smart stay got turned on. This caused all sorts of issues that I noted above. Turning it off has eliminated all the issues.
    mary beth hale likes this.
    08-24-2015 04:35 PM
  8. Nitro211K's Avatar
    Not sure if you meant Smart Stay or Smart lock, either way both are off on mine, and I did clear Cache before and after the Factory reset,and nothing helps. Maybe it's time to root and go back to KitKat.
    08-24-2015 08:07 PM
  9. wricu01's Avatar
    I'm having the same issue as mentioned above this 5.1.1 is unstable me and my son are having issues my phone was fine till this update reset doesn't help. I hope the fix this soon
    08-25-2015 07:26 AM
  10. Nitro211K's Avatar
    Just to find a common denominator with people that still have this issue:

    Phone carrier - Sprint
    Version - 5.1.1
    Launcher - Nova
    Lock screen - Fingerprint.
    SD card - Yes

    Please let me know if you are different than any of the above items.
    08-25-2015 11:37 AM
  11. wricu01's Avatar
    Yes I'm using TouchWiz not the Nova Launcher
    08-25-2015 11:41 AM
  12. hopefulfarm's Avatar
    Not sure if you meant Smart Stay or Smart lock, either way both are off on mine, and I did clear Cache before and after the Factory reset,and nothing helps. Maybe it's time to root and go back to KitKat.
    Smart Stay. The all seeing eye of Sauron. That eye icon that stares at you. It's supposed to know if you're looking at your phone's screen so the screen stays lit.
    08-25-2015 12:35 PM
  13. hopefulfarm's Avatar
    Just to find a common denominator with people that still have this issue:

    Phone carrier - Sprint
    Version - 5.1.1
    Lock screen - Fingerprint.
    SD card - Yes

    Please let me know if you are different than any of the above items.
    Launcher - Touchwiz

    otherwise the same. and as i mentioned, mine is fixed with unchecking/turning off Smart Stay in the settings.
    08-25-2015 12:36 PM
  14. wricu01's Avatar
    Well that didn't fix mine it sure what to do I have note 5 now but I still want my 4 fixed
    08-25-2015 04:11 PM
  15. Nitro211K's Avatar
    Me neither, I wonder if this is a Sprint only issue.
    08-25-2015 09:03 PM
  16. Nitro211K's Avatar
    I uninstaled the screen-off app, and shut off the smart lock and Air wake up. (Which I miss all three of these things) anyway now the screen wake delay is much much less. Maybe 1 second vs. 4 seconds before. I also did 5 Cache clearing in a row.
    08-28-2015 08:32 PM
  17. note4ish's Avatar
    Same issues and same denominators as mentioned. I tried both Touchwiz and Nova. I also did factory reset twice but problems still persist.
    09-02-2015 09:37 AM
  18. Nitro211K's Avatar
    I turned off the FP scanner and went to PIN, that didn't help. But when I went to Pattern and did a cache clear, my phone is flawless again and the battery life is WOW. Almost 48 hrs on one charge with 3+hrs of SOT.
    09-02-2015 11:42 AM
  19. PlanetPluto7's Avatar
    Had the Note 12.2 problem and my Note 4 lockscreen kept changing to an option I didn't choose. Couldn't set fingerprint for a few months without it changing back to Pin right away. Note 4 healed itself without my help after a few months. I did get a Samsung rep at Bestbuy to wipe the phone and re-install all right after I bought it to solve a Bluetooth problem. Samsung does look to be loosing it but since the Note phone no longer has an SdCard option they don't matter to me. Just need to get by until another brand replaces my stuff.
    09-03-2015 10:01 AM
  20. PlanetPluto7's Avatar
    Same except T-mobile. My scamnner now working on 5.11. It did not on 4.x
    09-03-2015 10:04 AM
  21. H3aTeRzz's Avatar
    Same issue on Unlocked TMobile Note 4 910T3 5.1.1

    Just disabled Smart Lock....seeing if that might help.
    09-07-2015 12:11 PM
  22. H3aTeRzz's Avatar
    "So far," since disabling smart lock, no issues.
    09-07-2015 05:21 PM
  23. H3aTeRzz's Avatar
    "So far," since disabling smart lock, no issues.
    Spoke too soon....still doing it....just doesn't appear to be as often.
    09-08-2015 01:17 PM
  24. David Aliprandi's Avatar
    holy ****l, I am screwed, fingerprint scanner doesn't work, backup password doesn't work. I am certain I have the correct password. I can't wipe my phone because I have many documents in private storage that are not backed up !

    I am in thailand with an unlocked note 4, so the carrier has nothing to do with it.
    09-30-2015 03:40 AM
  25. David Aliprandi's Avatar
    my phone is a brick now, what do I do ? how do I do a factory reset ? is there any way to save private storage before wiping ?
    09-30-2015 03:50 AM
39 12

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