How to install OneOS v21.7.3 MIUI Android 11 on Poco X3 NFC and How to root it. OneOS MIUI ROM is based on Xiaomi EU modified with parts from OneOS team and from the global / china. The reasons why they used Xiaomi EU is because it saves them work in the deodex and in applying translations (isolating Spanish that 80% is their own), who knows Xiaomi EU well, and in turn knows that the differences are enormous in many aspects. Use at your own risk, I’m not responsible for bricking your device.
Download and Terms
- Your phone must be Installed Custom Recovery. If not, you can read How to Install TWRP 3.5.2 Xiaomi POCO X3 NFC – Permanent
- Download OneOS_POCOX3NFC_21.7.3_V12-11.zip
- Download Magisk-v23.0.apk stable Rename apk to Magisk-v23.0.zip
- Copy ROM to SD Card ( Recommended )
OneOS v21.7.3 MIUI Install Instructions on POCO X3 NFC:
- Enter TWRP Recovery Mode: Turn Power off, Press and Hold Volume Up + Power key, When POCO logo appears release Power key only, keep pressing Volume Up until TWRP Recovery appears.
- First Important Step is to Backup (though depends on you if you wanna be safe or no )
- Select Wipe – Advanced ( Dalvik, Cache, Data ), Swipe to wipe
- Select Install – select OneOS_POCOX3NFC_21.7.3_V12-11.zip, Swipe to confirm Flash
- Select Wipe – Format Data – type “yes” and confirm ( Optional )
- Select Reboot – System
- Setup the Phone
Rooting
- Enter TWRP Recovery
- Select Install – select Magisk-v23.0.zip, Swipe to confirm Flash
- Select Reboot – System
- Connect Phone to Internet
- Install Magisk and Open it. Magisk will ask to do additional setups. Let it do its job and the app will automatically reboot your device.
- If magisk auto close, just delete all magisk data and open it again
- Done
Watch This Video!
Enter TWRP Recovery
You can enter TWRP recovery with 2 methods: via adb command by type “adb reboot recovery” and by pressing keys combinations ( Turn power off, press and hold volume up + Power key, when POCO logo appears release power key, keep pressing volume until TWRP recovery appears )
Notes / Warning!
- Use at your own risk, I’m not responsible for bricking your device.
- Using the incorrect file may brick your device.
- Make sure to backup your important data before root it.