[Help] My XZ2 doesn't unlock with my password, it crash & again ask password - Sony Xperia XZ2 Questions & Answers

Hello, I had problems with my Sony Xperia XZ2, in past it didn't boot up, stuck on logo with Sony, I flashed a firmware with flash tool and after that it boot up, it worked but now, after 1 week it won't to unlock the screen with my password, after I enter my password ( it is a model password ) some theme or app crash I think and shows "com.sonymobile.runtimeskinning.common,,," and just ask again and again the password .
What can I do to do not lose data from it, it is very important for me ?
I tried to erase cache from fastboot but bootloader is locked and I can't.
Can I flash firmware in some way and repair this bug ?

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Contact Sony - you received wrong upgrade...
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To start android enter your password

PLEASE HELP ME AFTER UNLOCKING BOOTLOADER I AM STUCK IN TO START ANDROID ENTER YOUR PASSWORD. i am not able to do anything
UPDATE :
I FOUND A SOLUTION AFTER ENTERING WRONG PASSWORD NINE TIMES MY MOBILE AUTOMATICALLY FORMATTED.
jai25993 said:
PLEASE HELP ME AFTER UNLOCKING BOOTLOADER I AM STUCK IN TO START ANDROID ENTER YOUR PASSWORD. i am not able to do anything
Click to expand...
Click to collapse
Go to recovery and do a factory reset. Remember it will erase all the data including your photos and videos.
If factory reset doesn't work flash Chinese twrp recovery by ycjeson.

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Hi,
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Do you get a "forgotten password" button somewhere?
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