Disable antivirus & firewall temporarily: They may block the update process.
Access the update menu:
Upload the new firmware:
Wait: The router will take 3-5 minutes. The Power LED will blink. Do not touch anything.
Hard Reset after update:
Reconfigure: Restore your backup or manually re-enter your PPPoE username/password (provided by Algerie Telecom).
WARNING: Do not download firmware from sketchy forums or Google Drive links. Corrupted firmware is a common way to permanently destroy your router.
Before downloading the "new" firmware, identify your current version. This prevents bricking your device.
Step-by-step:
V100R001C216B068 or V100R001C01B030).If your version ends in a number lower than B120 or shows a year before 2020, you desperately need the new firmware.