Yes. Download the stock firmware (Huawei Firmware Finder), flash via fastboot or the dload method (microSD card method). Your bootloader will remain unlocked.
The custom ROM was a hybrid. A stripped-down LineageOS 20 (Android 13) kernel, but with Huawei’s proprietary libcamera shim from EMUI 12. Lazar had rewritten the audio HAL to bypass the broken DSP. She flashed via fastboot update nmol31-los20-20250215.zip . huawei nmol31 custom rom updated
using a custom ROM, you must first bypass Huawei's locked software: The custom ROM was a hybrid
She disassembled the tablet with a guitar pick and a heat gun. The "test point" was a microscopic copper dot next to the eMMC chip. She shorted it with tweezers while connecting USB. The screen stayed black, but fastboot devices returned a string of hex. Her heart raced. She flashed via fastboot update nmol31-los20-20250215