: Use the command fastboot flash recovery twrp.img to install a recovery like TWRP .
However, the following resources and workarounds are the most reliable "guides" currently available for this device: 1. The Bootloader Challenge (The "Hard Stop") huawei matepad 104 custom rom install
Instead of risking a permanent "brick" by attempting a ROM install, most users improve their experience using these methods: Removing Bloatware via ADB: You can use ADB (Android Debug Bridge) : Use the command fastboot flash recovery twrp
Since Huawei won't help you, here is the general method using DC-Unlocker (example, as tools change frequently): as tools change frequently):