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I have stock xiaomi mi 8 without any additions. I changed my password, and after 3 days of not typing it, I realized that I forgot the new password. I know some words etc, which are there, but I can not guess it.

Is there any way how to make backup? Through the xiaomi mi, or some other service? I thought that it is possible through google, but not anymore. Kinda bummer.

I did not know that security on android moved so much. :-)

Is there any way to save the data and guess the password on some, I don't know, emulator/etc?

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  • no, there is no way to by-pass (besides bruteforcing). check micloud or photos.google.com or drive.google.com for backups, or try to remember screen lock, not much you can do. make sure you remember your mi account + google account + passwords before doing factory reset, you will need both to unlock FRP afterwards. you can double check from google.com/android/devicemanager
    – alecxs
    Feb 15, 2021 at 0:32
  • So that's why all the people have stupid swipe screen locks 😅 I know mi account, etc, I know that I can just wipe the data, but I think that I have the also something recent what I don't wanna lose. Isn't there some way with adb/fastboot/fastboot some ROM from SD card? Or how do you bruteforce it? I am sure that I could put together some words and numbers into some kind of cracker to guess the password but I don't know how. But as you say about frp and other anti theft tools I guess there is no other way.
    – Dalton
    Feb 15, 2021 at 1:40
  • OTG adapter connected with Teensy might work. But you are facing two problems. battery can not charged in OTG mode therefore you need some smart code to resume brute force. timeout is increased up to 1 day on wrong attempts
    – alecxs
    Feb 15, 2021 at 9:32
  • first link claims there is a trick to by-pass gatekeeper timeout via emergency dialer (Oppo device) but i doubt this is true... android.stackexchange.com/search?q=brute+force&tab=newest
    – alecxs
    Feb 15, 2021 at 9:34
  • there is a hint in this thread how to get EDL authorized. assuming you achieve read/write access in EDL mode there is an (old) exploit example how to flash TWRP on locked bootloader which might work on other devices, too. assuming your device is encrypted with FDE default_password TWRP will decrypt your userdata partition without knowing lock screen password. in that case you can backup your data or even reset screen lock
    – alecxs
    Feb 15, 2021 at 9:52

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