For a reliable fix, it is highly recommended to use official stock firmware to avoid further system corruption.
If your device can still enter a basic recovery state, use Huawei's eRecovery to download firmware directly over Wi-Fi: Connect the tablet to a power source using a USB cable. For a reliable fix, it is highly recommended
With the device off, press and hold simultaneously. For a reliable fix
For "soft-bricked" devices that won't boot but can enter Fastboot mode: Download and install Huawei HiSuite on a Windows PC. For a reliable fix, it is highly recommended
: The version (generally consistent across most firmware).
Connect your tablet to the PC via USB and enter Fastboot mode (usually by holding while connecting).