How to Unlock Bootloader and Root Motorola Razr 40 Ultra

In the flip phone scene, brands like Samsung are arguably at the top. However, Motorola has silently been rolling out some impressive devices in this domain without getting the same limelight and appreciation. This applies to the latest Motorola Razr 40 Ultra too.

Not only does this masterpiece come with an amazing list of specs and features, but it also does tremendously well in the custom development department. Before you can get your hands on the prospect of installing custom ROMs, gaining administrative privilege, and more, you will first need to unlock bootloader and root Motorola Razr 40 Ultra.

If you’re looking to do that and open up the pathways to unlimited tinkering options, then this guide will be helpful. In this guide, you will get to know how to unlock bootloader and root Motorola Razr 40 Ultra.

How to unlock bootloader and root Motorola Razr 40 Ultra

Motorola Razr 40

Step 1: Install Android SDK

Firstly, you’ll need to install the Android SDK Platform Tools on your PC. It’s the official ADB and Fastboot binary offered by Google. You’ll need to download it and extract it to a convenient location on your PC.

Step 2: Enable USB Debugging and OEM Unlocking

Then, you will need to enable USB Debugging and OEM Unlocking on your smartphone. The former makes your smartphone recognizable by the PC in ADB mode. Meanwhile, it’ll allow you to easily boot your smartphone to Fastboot Mode.

OEM Unlocking will be needed to carry out the bootloader unlocking process. You’ll need to go to Settings -> About Phone -> Tap on Build Number 7 times -> Return to Settings -> System -> Advanced -> Developer Options -> Enable USB Debugging and OEM Unlocking.

Step 3: Unlock Bootloader on your smartphone

You’ll also need to unlock the bootloader on your Motorola Razr 40 Ultra if you’re looking to root your phone. Remember that doing this will wipe off the data and might even make your device’s warranty null and void.

Step 4: Download the Motorola Razr 40 Ultra stock boot.img

Next, you’ll need to download the stock boot.img file for your Motorola Razr 40 Ultra by heading over to a trusted site. You should ensure that you’re downloading the same version that is currently installed on the device. Once it is downloaded, extract the boot.img file to the platform-tools folder on your PC.

Step 5: Patch Razr 40 Ultra boot.img via Magisk

  1. Download and install the latest version of Magisk
  2. Launch it and then tap on the Install button beside Magisk
  3. Then, choose “Select and Patch a File” before navigating to the stock boot.img file
  4. After that, select it
  5. Now, tap on the “Let’s Go” button present at the top right
  6. The boot.img/init_boot file will get patched and placed under the Downloads folder on the device
  7. You’ll have to transfer this file to the platform-tools folder

Step 6: Boot your device to Fastboot mode

  1. Connect your smartphone to the PC using a USB cable while ensuring that USB debugging is enabled
  2. After that, go to the platform-tools folder and type in CMD in the address bar before hitting Enter to launch the Command Prompt
  3. Then, type in the following command in the CMD window for booting your smartphone to Fastboot Mode
adb reboot bootloader
  1. For verifying the Fastboot connection, you should type the following command and you’ll get back the device ID –
fastboot devices

Step 7: Root Motorola Razr 40 Ultra using Magisk

  1. Start by transferring the magisk_patched_boot.img file to the platform-tools folder
  2. Then, execute the following command to temporary boot using the Magisk Patched Boot file –
fastboot boot magisk_patched_boot.img
  1. Your smartphone will now get booted to the OS using a temporary root, so make it permanent
  2. To do that, you need to launch Magisk -> Tap on Install -> Direct install -> Press “Let’s Go” located at the top-right
  3. Once it is done, press the Reboot button located at the bottom right
  4. Your Motorola Razr 40 Ultra will now boot to the rooted OS
Aviral Sharma
Aviral Sharma
Android Expert
Aviral Sharma is a talented and passionate writer who has been using words to express his thoughts ever since he learned how to hold a pen. He is passionate about outer space, history, sports, and most importantly, technology. Aviral has been a regular writer for rootmygalaxy for over 6 years and has been covering games and Android guides. He currently owns a Samsung Galaxy S24 Ultra, an iPhone 13, and a HP Pavilion laptop.

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