How to unlock BOOTLOADER for HUAWEI Smartphones test on MATE S

Unlocking Procedure

Step one: Preparation

1. Download the phone driver from the Huawei Device website and install it on your PC.
2. Download the ADB toolkit provided by Google and install it on your PC. Ensure that the directory where you installed the toolkit contains the file fastboot.exe.

HOW TO UNLOCK HUAWEI MATE S BOOTLOADER STEP BY STEP

 Step two: Unlocking

1. Place the device in fastboot mode:
Turn off the device. (Note: Go to the settings menu and disable the fastboot function, or power off the device, remove the battery and then wait for at least 2 seconds before reinserting the battery.) For a mobile phone, press and hold the volume down and power keys simultaneously for at least 10 seconds (for a tablet, press and hold the volume up and power keys).
If the above operations do not switch the device to fastboot mode, please try the following steps:
Turn off the device. (Note: Go to the settings menu and disable the fastboot function, or power off the device, remove the battery and then wait for at least 2 seconds before reinserting the battery.) Then insert the USB cable and press and hold the volume down and power keys simultaneously for at least 10 seconds.

2. Connect the device to your computer:
Connect the device to your computer using a USB cable. From the computer, open a command prompt and navigate to the directory where the ADB toolkit is installed. Next, check that the device is connected to the computer properly by entering “fastboot devices” in the command window and pressing Enter. If a message such as “9e42530e fastboot” is displayed, the connection is working.

3. Run the unlock command:
In the command prompt, enter “fastboot oem unlock ****************”, where * refers to the 16-digit unlock password, e.g. fastboot oem unlock 1234567812345678”.

4. Wait for the device bootloader to unlock:
Enter the unlock password. Your device should then restart. If the password is entered correctly, the device will be restored to its factory settings, after which the device will restart and enter standby mode. This completes the unlocking of the device’s bootloader. If an incorrect password is entered, a message will be displayed and the device will enter standby mode.

5. Confirm whether the bootloader was unlocked successfully.
Repeat steps 1 and 2. In the computer’s command prompt, enter “fastboot oem get-bootinfo”. Your device's bootloader will be displayed. “Bootloader Lock State: LOCKED” indicates that the bootloader is still locked. Perform the unlocking procedure again and check that the password was entered correctly. “Bootloader Lock State: UNLOCKED” indicates that your device’s bootloader has been unlocked. You can now install third-party firmware.

Note: to re-lock the bootloader after unlocking it, restore the device’s software to the Huawei official version using a microSD card then switch the device to fastboot mode and enter “fastboot oem unlock ****************” in the computer’s command prompt, where * refers to the 16-digit unlock password. The device will then restart, and the bootloader lock status will change to “Bootloader Lock State: RELOCKED”.