Without an unlocked bootloader, the device will reject any "custom" or "cracked" software you try to flash.
adb reboot bootloader
Searching for a "cracked" custom ROM for the Huawei MatePad 10.4 is a tricky path. Because modern Huawei devices use proprietary Kirin processors and have that Huawei officially stopped providing unlock codes for years ago, traditional "cracked" or custom ROMs (like LineageOS) are almost non-existent for this specific hardware. huawei matepad 104 custom rom cracked
The Huawei MatePad 10.4 is a powerhouse of a tablet, boasting a Kirin chipset and a beautiful 2K display. However, for power users, the lack of Google Mobile Services (GMS) and the restrictions of EMUI/HarmonyOS often lead to one question: Without an unlocked bootloader, the device will reject
Huawei's HMS (Huawei Mobile Services) is deeply integrated into the kernel, making it difficult to "crack" or replace with a generic Android build. The Huawei MatePad 10
Note: The first boot takes 5-10 minutes. If it bootloops, you flashed the wrong architecture (ARM64 only, not ARM32).