Unlocking the bootloader on Redmi K90 with generic commands is not possible. Methods that worked on older Xiaomi devices (for example, using an engineering ABL or Auth) are very expensive or the device’s secure‑boot architecture and configuration partitions block those approaches. This article explains How you can unlock bootloader on Your Redmi K90.
What is an engineering ABL (eng ABL)?
An engineering ABL is an engineering/debug build of the ABL (Android Bootloader Loader). On some earlier Xiaomi devices, obtaining and installing an eng ABL allowed developers to enter an engineering environment that made bootloader unlock or further modifications possible. That technique relied on the device trusting the flashed ABL within the existing signature/verification chain.
Requirements
How to Unlock Bootloader on Redmi K90:
- » Open QLM Auto Tool & Login
- » Select Model Brand Xiaomi & Model “REDMIK90“
- » On device Enable USB debugging + oem Unlock from developers Options
- » Connect Device Normal adb mod
- » Click Unlock Bootloader
- » Wait For Success, The device begin multiple time, unlock screen lock after restart
- » Once Done, The device begin , format data & restart ,, Success🔥🔥
How to Root Redmi K90:
- Download stock Stock ROM (must match installed Stock ROM version)
- Extract init_boot.img from it
- Move init_boot.img to phone storage
- Install prepared root app, magisk or sukisu ultra
- Click install, browse and & Select the document we moved
- After patching the document, move it back to pc
- Now flash the file
fastboot flash init_boot init_boot.imgfastboot reboot
Your device now successfully rooted…