This is the protocol your ISP uses to manage the router remotely. V01B07 updates the "management channel," ensuring that your ISP can push future configuration updates without requiring a technician to visit your home.
: Boot back into Recovery Mode (Power + Volume Up). Select Wipe Data/Factory Reset , followed by Wipe Cache Partition . Reboot the device. This clears residual conflicting files from the older software version. zte software v01b07 upd work