Since Huawei no longer provides these codes for free, you must use unofficial or third-party methods.
To generate or request an unlock code, you need specific identifiers found in your tablet's settings or service menu: : Found in Settings > About tablet . Serial Number : Found in Settings > About tablet > Status . IMEI/MEID : Dial *#06# on the keypad. How to Unlock Bootloader in HUAWEI MediaPad M3 ...
: Some users utilize tools like Potato Envy (available on GitHub ) which may require opening the device to use a hardware "test point" method. 3. Prepare the Tablet Since Huawei no longer provides these codes for
If you require a custom ROM or Root access, check XDA Developers forums for your specific model number (BTV-DL09 or BTV-W09) to see if specific exploits or methods have been discovered recently. IMEI/MEID : Dial *#06# on the keypad
Once ADB recognizes your device, reboot it into the bootloader mode.
Go to Settings > Developer Options and toggle on USB Debugging and OEM Unlock .