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You cannot install a custom ROM without an unlocked bootloader. Because Huawei does not provide unlock codes, you must use third-party hardware or software exploits. Option A: Third-Party Software Services
If you are determined to modify your device, you might explore these risky paths:
If you manage to obtain an unlock code, the process follows standard Android flashing procedures: Preparation
) occasionally support specific Huawei chipsets, but their success with the MatePad 10.4 is inconsistent and can be expensive. Lack of Development: huawei matepad 104 custom rom install
Note: If your MatePad 10.4 has been updated to newer versions of HarmonyOS, these exploits may be completely patched, making a bootloader unlock impossible. Prerequisites
This involves opening the tablet back cover and short-circuiting a specific point on the motherboard to force the chip into an unsecure USB COM 1.0 boot mode.
Alternatively, copy the image file onto a or a USB-OTG flash drive and insert it into the tablet. Step 3: Flash the Generic System Image In TWRP, tap Install . You cannot install a custom ROM without an
Once completed, do not reboot normally. Unplug the cable, hold the buttons simultaneously until the TWRP logo appears on the screen. 💿 Phase 4: Project Treble and Choosing a ROM (GSI)
Put your tablet back into Fastboot Mode ( adb reboot bootloader ).
As we've covered, unlocking the bootloader is the main prerequisite. Depending on your model, one of the following paths might (or might not) be available: Lack of Development: Note: If your MatePad 10
Because Huawei does not release full kernel sources for the MatePad 10.4, full-featured ROMs like LineageOS or Pixel Experience rarely exist. Instead, you use .
manage to unlock the bootloader, you might be able to flash a GSI. These are universal ROMs meant to work on any device that supports Project Treble. You can check your device's compatibility using the Treble Info App HarmonyOS vs. EMUI: Most MatePad 10.4 models have been updated to , which is even more locked down than the original EMUI. 3. Better Alternatives (Without Flashing)
By all accounts, the MatePad 10.4 is a beautiful tablet significantly hamstrung by a tight security model. Unless you have a specific need to run Google services, which can be partially addressed by third-party app stores like Aurora Store or microG, the default HarmonyOS/EMUI remains the most stable option. If you choose to proceed, be prepared for a serious challenge that could irrevocably break your device. Good luck.
To install a custom ROM, you must first unlock the bootloader. Since Huawei does not provide codes, you must use unofficial methods: 1. Paid Third-Party Services
Once your tablet boots into its brand-new custom ROM, you might encounter a few quirks common to GSI builds: