If you encounter issues during the update process:
A firmware update from 2024 or later closes these holes. If your router’s manufacturing date is before 2023, you are likely vulnerable. Zte F600w Firmware Update
There are two primary ways firmware is managed on these devices: If you encounter issues during the update process:
Browser cache or old config corruption. Fix: Clear browser cache. Perform a hardware reset (30-30-30 method: hold reset for 30 seconds while powered, unplug power while holding for 30 seconds, plug back in while still holding for 30 seconds – rare but effective). Zte F600w Firmware Update
Not always. But some updates reset everything. If you see “Clear NVRAM” ticked in the upgrade menu, it will wipe.
Method A — ISP push (automatic)