How to bypass anti rollback on Sony Xperia 1ii - Sony Xperia 1 II Questions & Answers

How to bypass anti rollback on Sony Xperia 1ii without unlocking bootloader
Is it possible to Downgrade Android 11 to Android 10 without unlocking bootloader

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Problem unlock bootloader z3+

Hello, I have the sony xperia z3 + I unlocked the bootloader but the problem is that after I enabled sony Protection System, and do not want my bootloader unlocked whatever I do the phone works well, but for the bootloader I can not do anything ... I already tried tool studio flash and android nothing there ... I already thought envoy to sav but he will see that before I unlocked the bootloader ..I do not know what to do for the unlocked if you like it
english please. im interested to know further on this new protection method.

Sony Xperia Z unlock bootloader with MACBOOK PRO 2017

I can't unlock the bootloader legit all the tutorials are outdated, save me someone!
you will have to virtual box and run linux or windows will be your best option
https://discussions.apple.com/docs/DOC-5971

Sony Xperia Z3 Compact SO-02G (Docomo)

I need to flash custom firmware on my Z3c but bootloader unlock isnt allowed. Tried to root without unlocking bl but links for "twrp_prerooted_Z1f.zip" are dead. Does anyone have that file? Is there any other way to flash cfw on my Z3c without unlocking bl?

bootloader xz3

can i relock bootloader for sony xz3 ?

UBL NO - UNLOCKED

Is there any way to unlock sony xz3 bootloader softbank version?

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