Or flash the vbmeta_disabled.img via fastboot:
Huawei NMO-L31 (also known as the Huawei GT3 ) has a long history in the custom ROM community, primarily driven by users looking to bypass the aging (Android 6.0 Marshmallow) interface. The Evolution of NMO-L31 Custom ROMs huawei nmol31 custom rom updated
For users who find stock Android too plain, these feature-heavy ROMs offer unparalleled customization. Or flash the vbmeta_disabled
Navigate to and select your downloaded .zip custom ROM file. wipe the caches
If your phone loops the boot animation for more than 15 minutes, boot back into TWRP. Perform another Factory Reset, wipe the caches, and re-flash the ROM file. Error 7 in TWRP
Ensure your NMO-L31 is charged to at least 70% to prevent the phone from powering off mid-flash.
