For most people, the “better” firmware doesn’t exist publicly. The safest real improvement is to use the F602W only as a modem (bridge) behind a good router.
Upgrading the ZTE F602W firmware is a relatively straightforward process, but it requires caution and attention to detail. Before proceeding, make sure to: zte f602w firmware better better
For a successful update, follow these steps to ensure your device remains stable: Find Support By Product - ZTE-Server And Storage For most people, the “better” firmware doesn’t exist
: Before starting, go to System Management > User Configuration and export your current settings. For most people