The first boot takes 5-10 minutes. On LineageOS GSI, you must flash a "Huawei audio fix" via fastboot, otherwise speakers output static noise.
Huawei does not offer an official way to unlock the bootloader for devices released after 2018. Without an unlocked bootloader, you cannot flash custom recoveries like or ROMs like Software Restrictions: In versions like EMUI 10 and HarmonyOS, Huawei removed the oem unlock huawei matepad 104 custom rom 2021
Some paid services like DC-Unlocker or GetDroidTips sometimes offer codes for older models, but support for the 2021 Kirin-based MatePad is rare and often costs between $20 and $60. The first boot takes 5-10 minutes
The first boot after flashing is always a small, nervous prayer. The tablet's logo lingered on a black screen, then the animation began — a slow unfurling of a new launcher, icons mapped like city streets under fresh snow. The home screen opened to a simple, elegant layout he hadn't chosen but liked immediately: a clean status bar, a responsive launcher, and a settings panel that finally named features he'd only guessed existed before. Without an unlocked bootloader, you cannot flash custom
: These create a virtual environment that mimics a device with Google Mobile Services (GMS), allowing apps like YouTube or Maps to run, though they may include ads. 2. Bloatware Removal (ADB Method)
Huawei does not provide unlock codes. Third-party paid services are often unreliable or do not support the Kirin 820 chipset found in the 2021 model.