Redmi 10 2021/ 2022 | How To Flash Custom ROM In Selene (Nusantara OS 12L)

Complete Tutorial To Flash Custom ROM on Redmi 10 2021/2022 Selene

This tutorial use Nusantara OS 12L. you can use this tutorial on other custom ROM. Make sure you’re using R Vendor (Android 11 MIUI 12.5.xx stock ROM).

Table of Contents

• Prerequisite
• Video Tutorial To Custom Your Selene
• File Needed To Custom Selene
• Instruction To Custom Your Selene
• Troubleshoot

Prerequisite

• Use at your own risk! I am not responsible for your actions
• I will try to keep update this page
• Android 13 doesn’t need to flash boot.img/Custom Kernel again!
• Tutorial How to Unlock Unlock Bootloader Xiaomi Phone >> Check Here
• Take IMEI Backup !! Store backup on pc/sdcard (nvram,nvdata,persist,persistents,protect_f,protect_s for mediatek and EFS for snapdragon)
• This custom ROM use firmware MIUI based Android 11 MIUI 12.5.xx stock ROM (flash the fastboot file im provided)
• If you need the original boot.img, firmware (fastboot & zip) included files below

Video Tutorial To Custom Your Selene

File Needed To Custom Selene

• Stock ROM i’m using (fastboot) >>  selene_global_images_V12.5.19.0.RKUMIXM_20220513.0000.00_11.0
• MUI Recovery stockROM.zip >> miui_SELENEGlobal_V12.5.19.0.RKUMIXM
• Original boot.img (if needed) >> V12.5.19.0.RKUMIXM
• Nusantara-12L boot.img (if needed) >> boot_Nusantara-12L
• Custom Recovery for selene  >> TWRP 3.7
• vbmeta selene
• Nusantara OS for selene (Android 12/12L/13)
• Custom kernel for selene >> [R1.2]selene[RedSquid][R-OSS][Sea]1-21-33

Instruction To Custom Your Selene

• Unlock Bootloader Your Phone
• adb reboot bootloader
• fastboot flash --disable-verity --disable-verification vbmeta vbmeta.img
• fastboot flash boot recovery.img
• fastboot reboot recovery
• Copy all the file needed to sdcard
• backup IMEI & Baseband
• Choose install -> flash stockROM.zip (MUI Recovery) -> add zip -> CustomRom.zip -> check reflash TWRP/ OFOX, then swipe/ flash
• Format data
• Reboot to system

Troubleshoot

If your device still reboot back to recovery after all that step, especially some Samsung emmc varian and NFC varian. or another gacha, do this :

• reboot to recovery, flash another Custom ROM boot.img to boot partition, and re flash TWRP/OFOX, reboot
• if still not booting, try flash MIUI boot.img (Recomended), then re flash TWRP/OFOX, reboot
• if booting succesfully, you need to reboot to recovery again to flash any custom kernel, because your wifi, bluetooth etc is DEAD