Lenovo Tab M9 Unlock Bootloader [Step-by-Step Guide]

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We have included all the steps in this post to unlock bootloader on Lenovo Tab M9. Simply, follow this guide and you will end up unlocking the bootloader successfully.

If you get bored with the stock firmware of your smartphone and want to play around with more customization, then you will need to get your device rooted. But you can’t be able to root your device before unlocking the bootloader.

lenovo-tab-m9-unlock-bootloader

What is Bootloader?

In simple words, a bootloader is a set of instructions that are executed automatically, whenever the device is turned ON. The operating system and Kernel need bootloader instructions to start the boot process and operate the recovery mode.

Moreover, you can find the bootloader on every Android smartphone, but the location may vary depending upon different smartphone brands.

By default, the bootloader of every smartphone is locked. The reason behind it is very obvious as every manufacturer wants the users to stay with their default provided skin and stock ROMs.

But as we know, Android is open-source and that gives more power and benefits to users to customize their smartphones with endless possibilities. Therefore, Android also provides users an alternate route to get a chance to customize their smartphones.

This process requires many hurdles ahead. It starts with unlocking the bootloader and so on the process continues with rooting and at last you can end up flashing the custom ROM on your device.

So, we get to know that the unlocking bootloader is the permission for users to make different levels of customization from their end.

Benefits of Unlocking Bootloader
  • Gaining the root access
  • Allows to flash custom recovery
  • Installing different custom ROMs

Disadvantages
  • This process may void the phone warranty
  • The performance of your phone might also get affected
  • The process might brick your phone, if anything goes wrong
  • Might become a reason for disturbing the security of your smartphone
  • You might also lose the data available on your phone storage.

How To Unlock Bootloader on Lenovo Tab M9?

Pre-Requisites

  • You need to charge your smartphone to at least 70% or above.
  • Grab the original USB cable of your smartphone.
  • Make a complete back-up of your important data. Note: It will wipe all the data available on your phone storage.
  • Download Lenovo Tab M9 USB Drivers.
  • Download ADB and Fastboot tool. Windows and MacOS

Step 1: Enable The Developer Option and OEM Unlock

To enter the process of unlocking, you are required to enable the developer option first and then USB Debugging and OEM unlock.

  • Go to settings on your phone.
  • Locate the About Phone and then tap on Build Number several times until the Developer option gets enabled.
  • Get back to the main Settings and then tap on Additional Settings->Developer Option.
  • In the Developer options, enable OEM Unlocking.
  • After that, enable USB Debugging.

Step 2: Unlocking Bootloader on Lenovo Tab M9

  • Download and install Lenovo Tab M9 USB drivers from the above pre-requisites section.
  • Grab the original cable of your smartphone and then connect it to your PC.
  • Turn your phone OFF Completely.
  • Now, extract the ADB & Fastboot folder and right-click anywhere in the blank space while holding the shift key to open the command windows or power shell windows.

Proceed with typing the following command to check whether your smartphone is detected by the computer successfully:

adb devices

Now, type the following command to enter into bootloader mode:

adb reboot bootloader

To unlock the bootloader, type in the following command and press enter:

fastboot flashing unlock

if the above command doesn't execute successfully, then you can try the following command

fastboot OEM unlock

  • After that, you will get the confirmation message, just proceed with Yes to unlock the bootloader.
  • At last, reboot your smartphone by typing the following command to let your smartphone enter into an unlocked bootloader state.

fastboot reboot

That's it, you have successfully unlocked bootloader on Lenovo Tab M9.

How To Boot Lenovo Tab M9 Into Fastboot Mode?

  • Turn your Phone Off Completely.
  • Now, press and hold the Volume Up, and Power buttons simultaneously.
  • Once, the Boot windows appear on the screen, release all the buttons.
  • Now, select the "Fastboot Mode" option using the Volume UP key and confirm it by pressing the Volume Down key.

Now Your Lenovo Tab M9 is in Fastboot Mode!