AC 750 wi-fi range extender bricked after firmware update, no wi-fi or ethernet access

My ac 750 did exactly the same thing after I updated firmware.  All I get is a flashing green power light.  Has anyone else had this problem or how can I fix this?

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jameshi wrote:

Since being prompted to upgrade firmware on my EX3700 AC750 range extender I can not access the device, it does not emit a wifi signal nor can I get to it using an ethernet cable, I've tried a hard reset but that has no effect.

 

All I see is a blinking green power light.

 

Any ideas how I can get it working again?

 

 

 

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