[Realme GT Neo 3] whyredFire:
Despite its considerable time since release, the Indian variant of this phone still lacks an official method to unlock the bootloader. Realme recently closed their unlocking authentication servers for "maintenance" a few weeks ago, but as of the current writing, they have not reopened them.

In this tutorial, we will focus on unlocking the bootloader using the Chinese firmware, as it utilizes distinct authentication servers that still allow this process.

(The provided links are all official; however, as a precaution against potential removal from their official servers, I will also mirror them to SourceForge.)

WARNING: All actions performed are at your own peril and risk. The author assumes no responsibility for any incorrect actions taken by the user.

During this process, your entire userdata will be wiped, and the factory reset will be performed multiple times. Therefore, it is crucial to back up your data before attempting this procedure.​

Download links

Platform tools: https://dl.google.com/android/repository/platform-tools_r34.0.4-windows.zip

Deeptest apk: (attached below)

OP Local Updater: https://oxygenos.oneplus.net/OPLocalUpdate_For_Android13.apk (they removed it from their servers now, I've attached it below with deeptest apk)

Indian Rollback package

Realme GT Neo3 80W version: https://download.c.realme.com/flash..._Neo3/RMX3561_11_A_OTA_0150_all_96e7d9_IN.zip

Realme GT Neo3 150W version: https://download.c.realme.com/flash...150W/RMX3563_11_A_OTA_0150_all_f6451c_-IN.zip

China Rollback package

Realme GT Neo3 80W version: https://rbp01.realme.net/GT_Neo3/RMX3560_11_A_OTA_0440_all_a1fa82_CN.zip

Realme GT Neo3 150W and Hokage Limited Edition: https://rbp01.realme.net/GT_Neo3_150W/RMX3562_11_A_OTA_0440_all_6875c4_CN.zip

Mirror: (Will be updated shortly)

Instructions for migrating to Chinese region firmware

Obtain the Indian and China rollback packages suitable for your device variant, along with the OP Local Updater.

Install the OP Local Updater APK on your device.

Rename both the Indian and China packages to the same name. Place the Indian rollback package in the main directory of your internal storage, while storing the China rollback firmware in another location within the internal storage.

Launch the recently installed OP Local Updater app. Choose the local package option and select the indian rollback package located in the main directory of your internal storage. A confirmation dialog box will appear, but refrain from accepting it immediately. Instead, make it a floating window, navigate to the file explorer, and substitute the indian rollback package with the China rollback package. Afterward, with the China rollback package now in the main directory of your internal storage, open the OP Local Updater app from the floating window and proceed to press "accept."

Please be aware that this process will require some time to complete, and once it's finished, your device will prompt for a reboot. After the reboot, you will be welcomed to Realme UI 3.0, which is based on the Android 12 China version.

Unlocking Bootloader using Deeptest

Once you have successfully switched to the Chinese region ROM, proceed to install the Deeptest APK and initiate the bootloader unlock application.

Typically, the application approval process takes just a few minutes. Click on 'Start deep testing' to begin.

Your phone will automatically reboot into the bootloader mode. Verify if your device is recognized by running the fastboot devices command (if not, you might need to install missing drivers by checking for Windows updates and looking for optional updates while the phone is connected in bootloader mode).

To unlock the bootloader, execute the fastboot flashing unlock command and confirm the action on your device using the appropriate volume button.

Once the process is complete, your device should automatically reboot. If it doesn't, you can use the fastboot reboot command to reboot it to the system.

Congratulations! Your bootloader is now successfully unlocked.

Migrating back to Indian region firmware

Obtain the indian and China rollback packages suitable for your device variant, along with the OP Local Updater.

Install the OP Local Updater APK on your device.

Rename both the Indian and China packages to the same name. Place the China rollback package in the main directory of your internal storage, while storing the Indian rollback firmware in another location within the internal storage.

Launch the recently installed OP Local Updater app. Choose the local package option and select the China rollback package located in the main directory of your internal storage. A confirmation dialog box will appear, but refrain from accepting it immediately. Instead, make it a floating window, navigate to the file explorer, and substitute the China rollback package with the Indian rollback package. Afterward, with the Indian rollback package now in the main directory of your internal storage, open the OP Local Updater app from the floating window and proceed to press "accept."

Once it's finished, your device will prompt for a reboot. After the reboot, you will be welcomed to Realme UI 3.0, which is based on the Android 12 Indian version.

Navigate to the official updates app and search for available updates. Proceed to update your device to the latest version offered. It is advisable to perform a factory reset from recovery after applying the latest update for optimal performance.

Acknowledgment to the original author or contributors for their valuable information and assistance is appreciated. Credits go to the individuals who have provided guidance and expertise for the content mentioned.