Upgrade Failure leads to Damage?

Hi,
I tried to upgrade the packages to 5.2.6 when suddenly, the electricity cut off during the booting time. Then, when I tried to turn it back on, the Interface Indicator lamps indicated nothing, and no device could connect to the router.

What should I do? Should I go to service center, or are there any other ways to fix this?

Thank You.

Again, you double posted… you should NetInstall. That will reformat the device.