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gt-p6800 locked after failure with unlocking pattern

My galaxy tab gt-p6800 was locked after failure with unlocking the pattern lock, my younger brother tried unlocking the pattern and he failed three times. after that, a window popped up and he pressed "ok" right away and we couldn't read what was written. and it turned off after that. and since then, when I try to turn it on, the samsung screen appears and it stays the way it is.
can anyone please tell me what is the problem exactly? how do I solve it?
thanks for everyone in advance

That is weird because the pattern should give more attempts then the tab should be locked for several minutes even if you enter the correct pattern, but if you continue trying then it will ask you for a user name and password, that's what happened to my cousin tab, and he just format and install a new rom and the tab worked again. But in you case only three time it is like you enter pin code for the sim card.
Sent from my GT-P1000 using XDA

You may flash a new rom after doing a nandroid backup
Sent from my GT-P1000 using xda premium

[Q] Issue when turning on the note

Hi everyone:
I bought a Galaxy note in March (i still don't get the ICS update T_T) and since e few weeks, when I turn it on, after i enter the pin code to unblock the SIM, the note restarts suddenly, but it is a weird restart because it does not appear the "turning off and turning on videos", only the turning on sound. And then my SIM is not available and it keeps restarting every few seconds...
So I have to turning off manualy, NOT ENTER THE PIN CODE for a few minutes, 3 I think is enough, 5 I am sure it is enough, and then enter the pin code and the everything works find...
This is troublesome because sometimes the note restarts out of nowhere and i have to do all again...
I was thinking in restoring it to the factory configuration if no solution appears...
Thanks for reading and cya

First remove Sim and sd card clean them. Reapply them and try the phone if this isn't helping try another Sim, without the sd card. As last solution reset the phone.
Sent from my GT-N7000 using Tapatalk 2

Help!! Flashing locked phone without erasing data/pictures

Hi there long reader first time poster.
I have a locked S6 edge model SM-G925AZKAATT, for some reason it won't take my pin out the blue which is a 4 digit pin, nothing crazy, I have noticed sometimes that it took 2 or 3 times to unlock it , but now out the blue it just won take my pin, I tried Google Device Manager and put a new 4 digit pin in the password, a message and a phone number, I can only see the green button to make the call to the phone number provided and the message, but I tried the new 4 digit pin, and it doesn't work,
also tried in the Samsung account, set up a new pin and still no avail,
I have been reading a lot and I see threads about flashing stock with Odin will not erase the data,
but will it also unlocked the phone?
or least boot up in some sort of recovery mode, enough for me to extract photos and and other media
currently this what I have to maybe do this,
G925AUCU1AOCE_CL4351102_QB4488922_REV02_user_low_ship.tar.zip
and
Odin3_v3.11.1.zip
any advise will be greatly appreciated
Thanks

Flash carrier ROM without deleting everything?

Proud owner of two unlocked Note 9's since black friday! After getting them I flashed to Verizon stock firmware to get access to WiFi calling but have since moved over to Google Fi.
Every time I flash a new ROM in odin (using home CSC) the device starts up just fine but when I try to unlock the phone with the code or fingerprint, the screen turns black for a few seconds then goes back to the home screen. The only remedy was a hard reset losing all my data (which I can get most back with my backup). I am ok with that, but my wife won't let me touch hers because it deletes all the passwords and samsung pay cards even with the backup. I have even tried clearing the cache and it still won't go past the lock screen. I think the Verizon ROM is blocking some radios so I need to flash back to unlocked.
Has anyone seen this error and have any idea how to prevent it?

ajonesaz said:
Proud owner of two unlocked Note 9's since black friday! After getting them I flashed to Verizon stock firmware to get access to WiFi calling but have since moved over to Google Fi.
Every time I flash a new ROM in odin (using home CSC) the device starts up just fine but when I try to unlock the phone with the code or fingerprint, the screen turns black for a few seconds then goes back to the home screen. The only remedy was a hard reset losing all my data (which I can get most back with my backup). I am ok with that, but my wife won't let me touch hers because it deletes all the passwords and samsung pay cards even with the backup. I have even tried clearing the cache and it still won't go past the lock screen. I think the Verizon ROM is blocking some radios so I need to flash back to unlocked.
Has anyone seen this error and have any idea how to prevent it?
Click to expand...
Click to collapse
Remove all fingerprints, PINs, passwords etc before flashing. You can set them back up after installing the new firmware.

Screen lock was already changed. Try again with the new screen lock on SM-N960N galaxy note 9

Dear all suggest me about screen lock error on galaxy note 9 SM-N960N.
I have tried many more process for fixing this error but i couldnt find solution.
In my knowledge this error may caused by google account login in device because I have used [email protected] account instead of @gmail.com after that my screen lock doesnt work and shows error as shown in figure.

Are Any one solve this issue?