To determine if you need an update, you must log into the device’s web management interface.
Do update over a Wi-Fi network (if your F601 is connected to a secondary router). Use a direct Ethernet cable. zte f601 firmware
If you flash a generic ZTE firmware onto an ISP-locked device, you will break the authentication keys. This results in the "PON" light being stable but the "LOS" or "Internet" light staying off because the OLT rejects the firmware's signature. Always back up your original MTD partitions before performing any firmware modifications. The feature of the F601 generally ensures that if a download is corrupted, the device automatically rolls back to the previous working version, but this does not protect against manually flashed incompatible binaries. To determine if you need an update, you
If the wrong firmware version was uploaded, or power was interrupted, the power LED may blink continuously, and the device will fail to boot. If you flash a generic ZTE firmware onto