Zyxel FWA510 stuck in boot loop – no Wi-Fi SSID and no DHCP after factory reset

Hello,

I am experiencing an issue with my Zyxel FWA510 device.

Symptoms:

When powering on the device, the LEDs behave as follows:

• The Power LED starts blinking during the boot process.
• After a few seconds, the Power LED becomes solid, and the WiFi/WPS LED also turns solid.
• A few seconds later, the Power LED starts blinking again, then returns to solid along with the WiFi/WPS LED.

This sequence repeats continuously in a loop.

Network behavior:

• No Wi-Fi SSID is broadcast by the device.
• When connecting a computer via Ethernet, the device does not assign any IP address via DHCP.
• Therefore, I cannot access the management interface.

Troubleshooting already performed

• Performed a factory reset using the reset button.
• Tested with different Ethernet cables and network interfaces.

However, the behavior remains exactly the same.

Questions:

Does this behavior indicate:

• a firmware boot loop?
• a recovery mode on the FWA510?
• or possibly a hardware failure?

Is there any procedure available to force a firmware recovery (for example via USB) on this device?

Any help or guidance would be greatly appreciated.

Thank you.