Because Huawei no longer provides bootloader unlock codes officially, any verified custom ROM for the NMOL31 relies on third-party unlock methods (e.g., using PotatoNV or paid services like HCU Client).
Swipe to Confirm Wipe. (Note: Do not wipe Internal Storage unless you have copied your ROM files to an external SD card). Step 3: Flash the Verified ROM Go back to the TWRP main menu and tap . Locate and select your downloaded custom ROM .zip file. huawei nmol31 custom rom verified