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Repair Fastboot And Bypass UBL On Realme - Step By Step Guide

This is solution for problem when you do unlock bootloader using  indeepth test APK, but cannot boot into fastboot mode.

The process include setup enviroment, bypass UBL, fix fastboot. When it finish you can flash custom recovery, flash custom recovery or do patch boot.

As you know, you we can bypass unlock bootloader (UBL) on some Realme phone (mtk) without using indeepth test APK, using bypass tools. But the problem is it will disable fastboot mode on the phone.

Common problem for Realme mediatek phone is after bypass UBL the fastboot cannot be access. 

So in this tutorial i will show you how to bypass UBL and fix fastboot mode.

Latest unofficial Instan Unlock Bootloader for Realme mediatek phone. Tested on Realme 3/ 3i/ 3s and Realme 8i/ Narzo 50 (RM6781).

It also should work on any Realme phone that use mediatek soc, such as G35 RM6765 C11/ C12/ C15/ C20/ C21, Realme C3/ Narzo 10A (RMX2020), Realme Narzo 30A / Narzo 20/  7i EU, etc.

Noted for other realme type meaby you need to flash the vbmeta disabler


Prerequisite

  • Use at your own risk! I am not responsible for your actions
  • I will try to keep update this page
  • Make sure use the latest stock firmware
  • Take IMEI Backup !! Store backup on pc/sdcard (nvram, nvdata, nvcfcg for mediatek and EFS for snapdragon)

Video Tutorial




File Needed

Setup Enviroment

  • Install Python  & UsbDk
  • Extract mtkclient, open CMD inside the folder
  • Installed requirement (require internet conenction)
  • pip3 install -r requirements.txt

Pull images

  • Read partition > select boot, lk, vbmeta
  • Select Read Partition > safe to a folder

Repair fastboot and Patch lk.bin

  • Install LibUsb Driver
  • Disable WIndo

List Of lk.bin (Fastboot)

File lk.bin needed to fix fastboot, so you can boot info fastboot. Rename lk-patched.bin to lk.bin if needed. If you can't find your lk.bin here, you need to find your stock firmware and extract it from there.

Instruction To Bypass UBL & Disable AUth

  • Install LibUsb Driver
  • Disable WIndows Defender
  • Enable OEM
  • Turn off phone
  • Open Mediatek bypass tools (e.g Dolphin)
  • Select Unlock Bootloader
  • Press vol up + down > Plug usb cable

Instruction Flash Custom Recovery & Custom ROM

  • fastboot -w (if needed)
  • fastboot devices
  • fastboot flash recovery recovery.img
  • fastboot reboot recovery