[Realme 2 pro Guides, News, & Discussion] hari2897:
This post was originally written and posted by Alessio from Realme forums

Hello Realme Fans

Here's how to unlock the bootloader (called in-depth test in the tutorial) on your Realme 2 Pro.

First, please read the “Disclaimer” carefully

【Disclaimer】

1. After unlocking your phone ALL OF YOUR DATA WILL BE ERASED! Backup before you proceed

2. The in-depth test may have unforeseeable impacts on your phone

3. Some functions may not operate properly because of third-party firmware, such as the photo-taking function of the camera. It may also cause device damage

4. Personal and confidential information on the phone may leak, and security compromised

5. The in-depth test may modify some of the system functions, and prevent you from updating the system version to enjoy the latest ColorOS

Second, read the steps below for the in-depth test

Preparation:

Realme 2 Pro - with 60%+ battery

1 x USB Cable

1 x PC/Mac

Step 1. Make sure you have backed up your data, unlocking your phone will erase all of your data

Step 2. Make sure your system version is the official and latest one

Step 3. Provide IMEI and sign up for the in-depth test via the link shared at the bottom of this post. The information will be reviewed by our staff, and the review will take approx 1-7 days. If your smartphone model and version are approved, you will receive an OTA package that supports the in-depth test. Install the OTA.

Step 4. Download and install the unlock tool apk on your phone:

https://download.c.realme.com/osupdate/DeepTesting_realme-release_signed.apk

Install it to apply for the bootloader unlock via the tool.

Step 5. Detailed steps to unlock the bootloader

#1. Open unlock tool.

[IMG="Step 1"]https://static.c.realme.com/IN/thread/1085076782421377024.png[/IMG]

#2. Click “Start applying”.

#3. Please read the disclaimer in detail, select the checkbox, and submit your application.

#4. The application will be checked by our server.

#5. Within approximately 1 hour, the unlock tool apk will show the status of unlocking - if it shows the unlocking is successful, please proceed to the following step.

#6. You can now click “Start the in-depth test” and press and hold the power key to reboot the device. You will then enter the fastboot mode.

#7. Download and install the fastboot tool on your PC or Mac (check this https://www.xda-developers.com/google-releases-separate-adb-and-fastboot-binary-downloads/), use a cable to connect phone and PC. In the Fastboot mode use the engineering command in the picture below to unlock.

#8. On your phone press the volume key to select “Unlock The Bootloader” and press the power key to confirm. The phone will reboot and enter in-depth test mode - all the user data on the phone will be cleared. We recommend you perform a data backup prior to applying

Bootloader appllication form link for the Realme 2 Pro:

https://goo.gl/forms/vDfXHNNt31j8ad5o1

FAQ

Q1: How to relock the bootloader?

#1. Download the unlock tool again to apply to exit in-depth test.

#2. Click “Apply to exit in-depth test” and press and hold the power key to reboot the device, and then you will enter the fastboot mode.

#3. In the Fastboot mode, use the engineering command below on your PC to re-lock the bootloader.

#4. Press the volume button to select the “Lock The Bootloader” option, and press the power key to confirm. The phone will reboot and exit the in-depth test mode, and clear all user data in the phone. We recommend that you perform a data backup prior to applying.

Q2: Are there any risks after unlocking the bootloader?

-> Please be aware that Realme cannot guarantee the full functionality, and will not be responsible, for any third-party unsigned custom ROM being flashed to your device after the bootloader is unlocked. An unsigned third-party custom ROM may not have gone through the thorough tests that we run for each device and software version that we release.

-> A third-party custom ROM may not work properly on your device, and certain functions and services may cease to work. The performance and device data may also be affected, and may damage the device permanently. In the worst case, unlocking the bootloader will cause physical injuries or material damage, for ex. due to the device overheating.

Q3: Will it affect future OTAs after unlocking?

The secure user data partition may also become inaccessible, and you will not be able to get any official software upgrades if you unlock the bootloader. Once re-locked the bootloader, users will receive official OTAs again.

Q4: Will it affect warranty?

Warranty will be fully applied to problems caused by Realme 2 Pro unlocking or flashing a custom ROM.

Q5: How to flash back the official ROM after installing a custom ROM?

Users need to go to a service center to flash the device - FREE of charge. We are developing a tool to flash a stock ColorOS. It will come in Q2 2019.

Q6: When other devices can get bootloader unlock?

Realme 1 will get bootloader unlock in Feb. Other devices are being

Q7: Where are the kernel sources?

https://github.com/sirwhanq/Realme-2-Pro-8.1-kernel-source

Link to original post https://c.realme.com/in/post-details/1085078965883764736