Yes, flashing the full dload firmware (which includes the odm partition) will remove any Huawei ID or Google FRP lock. However, after flashing, you will be prompted to log into the previous Google account as a security measure if the device was reset via recovery.
If your phone still shows the eRecovery screen (via Volume Up + Power): nova 5t flash file
Limitation: eRecovery only installs the latest approved build for your region. You cannot downgrade this way. Fastboot:
Corrupted modem partitions can lead to "no service." Proper flash files with updated modem firmware often resolve these problems. Manufacturer tool:
There are three mainstream methods to install a flash file on the Nova 5T. Choose based on your technical skill and the current state of your phone.