Unlocking the bootloader is the first step to any custom ROM installation.
seven times. Then, enable "USB Debugging" in the newly visible Developer Options Backup Data: Flashing or unlocking your bootloader will wipe all data on the device. Fastboot Mode: You enter this mode by holding Volume Down while connecting the phone to a PC via USB. Harmony OS with Nova 5t (( - HUAWEI Community nova 5t custom rom verified
: This conversion is reported to feel much more "polished" than standard EMUI, offering better battery backup and smoother performance while keeping all apps functional. Huawei Nova 5T – Custom ROM Verified Status