Leave a comment below or visit the ZTE community forums – the 2021 update remains a hot topic for troubleshooting legacy CPEs.
If you need help finding the specific download package, we can look into or verified ISP forums for your specific country. zte+f671y+firmware+update+2021
The update may have wiped your ISP configuration. Go to Management > User Configuration Management , click Restore Configuration , and upload the backup file you saved in Step 2. Leave a comment below or visit the ZTE
power off the device during this process, as it can lead to permanent hardware failure. Key Considerations Source Reliability: click Restore Configuration
Updating your device can completely reset your ISP provisioning details (including PPPoE usernames, passwords, and VLAN IDs). Access the web interface.