These can be repackaged into a flashable full update using mkbootimg and ZTE’s header tool.
: Before starting any upgrade, back up your configuration settings to prevent data loss . zte mu5001 firmware update full
: The device may display an error stating, "The device may currently have restricted network access due to arrears or other reasons," even if your account is active. These can be repackaged into a flashable full
The most noticeable change in the updated firmware is heat control. Early versions of the MU5001 ran notoriously hot, leading to throttled speeds and uncomfortable handling. zte mu5001 firmware update full
I found that updating to the latest generic firmware significantly improved my 5G latching in weak signal areas where it used to drop to 4G constantly.