Androidbiits.com will share a simple trick with Lenovo Legion Y90 L71061 owners who are trying to unlock bootloader of their phone. It comes with gaming triggers, cooling fans, global navigation satellite system (GLONASS) support, under display fingerprint scanner, 68W wired charging support, 12GB Random access memory and accelerometer sensor. If you have recently bought Lenovo Legion Y90 L71061, then you might be planning to unlock its bootloader. As we know, bootloader is a program that starts whenever phone is turned on. It activates the Android operating system on Lenovo Legion Y90 L71061. Locked bootloader does not allow us to install custom ROM on our phone. It only loads the authorized Android OS with a digital signature. Androidbiits.com will help you in unlocking Lenovo Legion Y90 L71061 bootloader. You will be able to install custom ROM after unlocking bootloader. Previously, I have published the simple instructions for rooting Lenovo Legion Y700. Now, I will discuss about the step-by-step tutorial to unlock bootloader in Lenovo Legion Y90.

I am hoping that you will be able to unlock bootloader in Lenovo Legion Y90 L71061 without facing any problem after reading the tutorial written in Androidbiits.com. Don’t forget to activate developer options. You must note that your Lenovo Legion Y90 L71061 will lose warranty after the bootloader unlock process. It will let you install Custom ROM. You must activate OEM unlock option. Bootloader unlock process will also let you install Magisk, so you will be able to root your phone after unlocking its bootloader.

If you are planning to install official and unofficial LineageOS custom ROM on Lenovo Legion Y90 L71061, then you must be eagerly waiting to unlock bootloader. You must save your important documents securely including messages and contacts before unlocking Lenovo Legion Y90 L71061 bootloader, because there is a possibility of losing all documents from your phone during bootloader unlock process.

Below are the steps using which you can unlock bootloader in Lenovo Legion Y90 L71061. Androidbiits.com will not be responsible if your phone got broken during bootloader unlock process. Lenovo Legion Y90 battery must be above 86 percentage before bootloader unlock process. You must follow these steps at your own risk.

How to Unlock Bootloader in Lenovo Legion Y90 L71061 Easily [Simple Steps]

1. Tap “Settings” Menu, then you have to tap “About” option on your Lenovo Legion Y90.

2. Tap build number several times until you see “You are now a developer” message.

3. Tap “Settings” Menu again.

4. You have to tap “General settings” option.

5. Tap “Developer options”, then activate “OEM unlocking” option and “USB debugging” option.

6. Copy the IMEI number and serial number of your Lenovo Legion Y90.

7. Visit zui unlock bootloader webpage, then you have to enter the IMEI number, Serial number, email address and security code. Click the submit button after entering all these information.

8. You will receive an unlock img file for Lenovo Legion Y90 in your email address within a few hours. You have to download the unlock img file.

9. Download Lenovo Legion Y90 USB driver and install it on PC.

10. Attach your phone with computer via USB cable.

11. Download SDK Platform tools Zip File.

12. Open platform-tools folder within the Android SDK folder on your PC after extracting the ZIP file.

13. Copy and paste the unlock img file inside platform tools folder on your PC. You have to rename the unlock img file to “sn.img” file.

14. Inside the platform-tools folder, you have to type “cmd” in the address bar and press “enter” button to open the Command Window.

15. Enter the following command to check the connected device:

adb devices

16. If your phone is successfully connected with PC, then you will be able to see a serial number.

17. Enter the following command to put Lenovo Legion Y90 into Fastboot mode:

adb reboot bootloader

18. Enter the following command to check Fastboot mode:

fastboot devices

19. If your phone is successfully entered into Fastboot mode, then you will be able to see a serial number.

20. Enter the following command in the Command Window:

fastboot flash unlock sn.img

21. Now you have to enter the following command in the Command Window:

fastboot oem unlock-go

You have successfully unlocked bootloader in Lenovo Legion Y90 L71061. If you are experiencing any difficulty while unlocking Lenovo Legion Y90 bootloader, then don’t hesitate to share your issue with Androidbiits.com. Please submit your email address and subscribe to get more information regarding Lenovo Legion Y90. You must check your email to activate subscription.