rather than direct file downloads. ZTE typically does not provide standalone, user-installable firmware files on its public global support pages to prevent accidental "bricking" of devices. ZTE Official Website Official Update Method (OTA)
The safest and most reliable way to update your firmware is through the device's built-in management interface: zte mu5001 firmware download link
Once on the MU5001 support page, find the firmware or software update section. rather than direct file downloads
Check the ZTE Mobile Support page periodically for any newly released offline update packages. MU5001 - ZTE zte mu5001 firmware download link
: Go to Settings > Device Settings > Update Management .