Bricked TP-Link TL-WA801ND?

Hello dear OpenWrt Community,

A few days ago I tried to reset my TP-Link AccessPoint to the original FW. That didn't bring the desired success, so I left it. I then updated the AccessPoint with a more recent version for the V2. That worked perfectly. Since I had reset the AccessPoint, I had to set all the settings again. No sooner said than done, it also worked. I then took the AccessPoint off the power, put it in its original place, plugged it in and now it doesn't boot anymore. The power LED lights up and the remaining 4 LEDs flash simultaneously every few seconds!

Is the part broken so bricked?