Here are a few options for your post, tailored to different platforms. Since you didn't specify the exact ROM name (e.g., LineageOS, Pixel Experience, MIUI port), I have used brackets like for you to fill in.
Once in COM 1.0 mode, tools like PotatoNV (open-source for older chipsets), SigmaKey , HCU Client , or Chimeratool are used to read or generate a bootloader unlock code directly from the device's partition.
Ensure you download the correct architecture. The Huawei MatePad 10.4 requires an GSI. Depending on your preference, choose a variant labeled bgZ (includes Google apps) or vanilla (no Google apps). Step-by-Step Installation Guide huawei matepad 104 custom rom exclusive
: Allows you to log into a Google account, download apps from the Play Store, and use Google Classroom, YouTube, or Chrome as if they were native. : Download the VMOS Pro APK
: Enable Developer Options by tapping "Build Number" 7 times in Settings > About Tablet. : Enable "USB Debugging". : Connect to a PC and use ADB commands (e.g., adb shell pm uninstall -k --user 0 [package_name] ) to remove ads and unwanted apps. 3. Third-Party Unlock Services (High Risk) Here are a few options for your post,
MatePad 10.4 BAH3-W09 Multi-Screen function - HUAWEI Community. HUAWEI Global
This style focuses on features, performance, and the technical achievement. Ensure you download the correct architecture
: This reduces system clutter and stops many unwanted background processes without needing to root the device or unlock the bootloader. 3. Customizing the Experience
Traditionally, Huawei provided official unlock codes through their website. This service is now officially discontinued for most modern devices. You will need to search for third-party services that may provide an unlock code for a fee. This is a critical and risky step.
Because the MatePad 10.4 supports Project Treble, a GSI can be installed once the bootloader is unlocked.
The MatePad 10.4 custom ROM scene is . LineageOS 20 transforms an otherwise GMS-starved tablet into a proper Android device, but the hoops you jump through (cost, risk, missing features) make it a niche hobbyist project.