MIUI One OS 12.5 for Poco X3 NFC (Surya) Android 11 – Updated: 2021-10-02

October 4, 2021 | By androidhowto@youtube | Filed in: Custom ROM.

How to install MIUI OneOS 12.5 on Poco X3 NFC Android 11 – Updated: 2021-10-02. Maintained By One-OS team. Changelogs: Given the few news that some devices are receiving and that despite receiving new versions, versions versions are without the new that Xiaomi provides to other models and also bring bugs that should not exist, some devices will go from weekly base to stable base, , Miscellaneous Changes & Improvements. Use at your own risk, I’m not responsible for bricking your device.

Download and Terms

  1. Your phone must be Installed Custom Recovery. If not, you can read How to Install TWRP 3.5.2 Xiaomi POCO X3 NFC – Permanent
  2. Download OneOS_POCOX3NFC_21.10.3_V125-11.zip
  3. Download Magisk: Magisk-v23.0.apk or latest rename it to Magisk-v23.0.zip ( if necessary )
  4. Copy ROM to SD Card ( Recommended )

MIUI One OS 12.5 Install Instructions on POCO X3 NFC:

  1. 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.
  2. First Important Step is to Backup (though depends on you if you wanna be safe or no )
  3. Select Wipe – Advanced ( Dalvik, Cache, Data ), Swipe to wipe
  4. Select Install – select OneOS_POCOX3NFC_21.10.3_V125-11.zip, Swipe to confirm Flash
  5. Select Wipe – Format Data – type “yes” and confirm ( Optional )
  6. Select Reboot – System
  7. Setup the Phone

Install GApps if necessary

  • Enter TWRP Recovery Mode: Turn power off, Connect the phone with a USB cable, Press and hold Volume Up + Power Key until TWRP Recovery Mode Appears.
  • Select Install – select FlameGApps-11.0-basic-arm64-20210808.zip, Swipe to confirm Flash
  • Select Reboot – System

Root Instructions if necessary

  • 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.
  • Install Magisk-v23.0.zip
  • Reboot to System
  • Connect Phone to Internet
  • Install Magisk app and Open it. Magisk will ask to do additional setups. Let it do its job and the app will automatically reboot your device.
  • 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!

  1. Use at your own risk, I’m not responsible for bricking your device.
  2. Using the incorrect file may brick your device.
  3. Make sure to backup your important data before root it.


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