In this post, I am going to write about changing region of Huawei Mediapad M3 BTV-DL09. By using this method you can convert your BTV-DL09 to European version. we will replace oeminfo of current firmware with European firmware. and then we will install European firmware.

Huawei Mediapad M3 BTV-DL09 Rebrand

Warning: You will lose the warranty 

Instructions:

• You need an sd card with at least 8GB of free space
• Backup all your important data from the mediapad
• Enable OEM unlock in developer options
• Unlock the bootloader of your device (How to unlock?)
• Download twrp_BTV-DL09_5_greatslon.img from THIS LINK
• Download and install Minimal ADB and fastboot from THIS LINK
• Copy this TWRP file to the Minimal ADB installation directory ( C:/program Files/minimal adb )
• Connect your device in fastboot mode and open minimal ADB , then run following

fastboot flash recovery twrp_BTV-DL09_5_greatslon.img

• Then type fastboot reboot and press enter, and the phone should reboot.
• Disconnect device from PC, and switch off, then hold volume up and power to enter TWRP mode
• On 1st screen swipe the blue bar to enter TWRP
• Then tap on backup and select only oeminfo partition
• Then tap on select storage and choose sd card
• Swipe to make a backup
• Once the backup is created, connect the device with pc, and you will be able to see the sd card
• In the sd card find the TWRP folder inside you will find backup files, copy them to a safe location because this is your original oeminfo.
• Now download European OEMinfo from THIS LINK
• Extract this file and you will 2 files inside, ( oeminfo.emmc.win & oeminfo.emmc.win.md5 )
• Copy them to your backup folder on the sd card and replace your original files.
• Download European firmware files from Here (Make sure you download both files update.zip and full data zip)
• Now copy both files on your sd card
• Disconnect the device from the PC and go back to the main menu of TWRP,
• Tap on restore and select the backup on the sd card
• Restore OEMinfo backup (Don’t reboot)
• Go back to the main menu, and tap on install then select “update.zip” firmware file, after installation don’t reboot
• Go back to the main menu, again tap on install, and select the 2nd zip file “update_data_full_hw_eu.zip”
• Now finally reboot.
• Your device should factory reset automatically
• check build number after reboot if it’s showing (BTV-DL09C100) you have successfully converted mediapad to the European version.