[Realme GT Master Edition] Sakeadoor:
I'm coming to talk about Realme GT2 Master Explorer edition (RMX3551).

It's been already 6 months using this device, the best device I ever had, but still struggling with China stuff, can't use WearOS devices, can't make backups in Google Drive, etc...

Up to now the only thing I know is to unlock the bootloader, so here we go:

First of all, ensure you are in Android 12, if not, you should downgrade version using OTA:

GT Master Exploration Edition : https://pan.baidu.com/share/init?surl=qXtbSfyifGm-LiJ7nEIX8w (code: dfng)

Once you are on Android 12, you can continue with the guide:

1. Support unlocked models

Realme GT2 Master Exploration Edition (RMX3551)

2. Matters needing attention

[BL unlocking must meet the following conditions]

It must be the True Self GT2 Master Explorer Edition purchased through official channels in mainland China

【BL Unlocking Instructions】(Important!!!)

1. After unlocking, it may have an unpredictable impact on the phone;

2. The third-party firmware may cause some functions of the mobile phone to fail to operate normally, for example, the camera function is unavailable, and may cause damage to the device;

3. It may cause leakage of private personal information on the mobile phone;

4. After unlocking, it will affect the system upgrade, and the user cannot receive the subsequent update version of realme UI;

5. After unlocking, the mobile phone status is equivalent to restoring the factory settings, and all user personal data will be cleared. It is recommended to back up the data in advance;

6. After the mobile phone is rooted, if necessary, you can contact the realme service center to assist in flashing the phone. If you can flash back to the official version, it will not affect the warranty status of the phone, but you will not be able to enjoy the return and exchange service; if you cannot flash back to the official version or the resulting If the hardware of the mobile phone fails, it is not covered by the warranty and needs to be repaired according to the situation.

3. How to unlock BL?

Preparation:

1. Download the dedicated unlocking tool APK for Realme GT2 Master Explorer Edition:

Link: https://pan.baidu.com/s/1lLPGjU2pVn8To9c7bd4LGA

Extraction code: 8023

2. The battery power of the mobile phone is kept above 60%

3. Prepare a USB data cable

4. Prepare a PC / Macbook

Officially begin:

Step 1, turn on developer mode

Go to "Settings" → "About Phone" → "Version Information", click "Version Number" 7 times to open the developer mode;

Step 2, open oemlock

Go to "Settings" → "Other Settings" → "Developer Mode" and turn on OEM unlocking;

Step 3, use APK to enter fastboot mode

Connect to the network, open the APK, and apply for unlocking in the APK.

Step 4, click "Start Application", please read the "Disclaimer" carefully and manually tick to agree.

Step 5, click "Submit Application" and then click "Return" to return to the application interface, wait for about 15 minutes. You can check whether the application has passed the review through "Check Review Status" on the application interface.

Step 6, unlock fastboot

After passing the review, click "Start Depth Test", and the phone will restart to the START interface

(The following is the real picture of the unlocking process)

Step 7, connect to the computer, run: fastboot flashing unlock

a. Go to https://www.xda-developers.com/google-releases-separate-adb-and-fastboot-binary-downloads/ to download the platform-tools tool for Windows

b. After downloading, extract it to the root directory of the c drive

c. Keyboard Win + R, enter CMD and then Enter

d. Enter cd.. and then Enter until C:\

e. Enter cd platform-tools and enter

f. Enter fastboot flashing unlock and Enter to continue step 8 of this post

Step 8, follow the prompts on the phone interface, press the volume up button to select unlock, and after a three-second countdown, the phone will enter the interface of the picture on the right.

Step 9, run the command: fastboot reboot on the computer adb, and the phone will automatically restart.

NOTE: This restart will erase all user data.

4. Lockback Tutorial

method one:

In the off state, press the volume down button and the power button at the same time to enter the BootLoader interface, connect to the computer, and enter: fastboot flashing lock

The phone will enter the lock interface, press the volume up button to select the lock bootloader, and after a three-second countdown, the phone will enter the interface of the picture on the right

Computer adb run command: fastboot reboot, the phone will automatically restart.

Method Two:

The mobile phone is turned on and connected to the computer, enter: adb reboot bootloader

The phone will enter the BootLoader interface

Enter: fastboot flashing lock

The phone will enter the lock interface, press the volume up button to select the lock bootloader, and after a three-second countdown, the phone will enter the interface of the picture on the right

Computer adb run command: fastboot reboot, the phone will automatically restart.

After completing the Bootloader lock by any of the above two methods, please download the unlock APK to complete the installation, and apply for exiting the in-depth test on the application interface.

It is stated again that the operation of BL unlocking will have the following risks! ! ! Very important and a must see!

1. After unlocking, it may have an unpredictable impact on the phone;

2. The third-party firmware may cause some functions of the mobile phone to fail to operate normally, for example, the camera function is unavailable, and may cause damage to the device;

3. It may cause leakage of private personal information on the mobile phone;

4. After unlocking, it will affect the system upgrade, and the user cannot receive the subsequent update version of realme UI;

5. After unlocking, the mobile phone status is equivalent to restoring the factory settings, and all user personal data will be cleared. It is recommended to back up the data in advance;

6. After the mobile phone is rooted, if necessary, you can contact the realme service center to assist in flashing the phone. If you can flash back to the official version, it will not affect the warranty status of the phone, but you will not be able to enjoy the return and exchange service; if you cannot flash back to the official version or the resulting If the hardware of the mobile phone fails, it is not covered by the warranty and needs to be repaired according to the situation.

THANKS FOLKS!