Power white Light blinking after firmware update

[andypib]

after firmware up date extender didnt reboot    power light just flashing  cant sing in to extender or by ip address   tyred going to downloads to reinstall software to extender cant get download on to my mac  just keep going round in circuls 

[plemans]

This has happened before. Here's a simlar thread:

https://community.netgear.com/t5/WiFi-Range-Extenders-Nighthawk/EX6120-green-blinking-power-light/m-...

Basically you need to do a tftp recovery to reinstall the firmware. here's how you do it with windows. 

https://kb.netgear.com/000059634/How-to-upload-firmware-to-a-NETGEAR-router-using-Windows-TFTP