Analog Discovery 2 damaged by high voltage pulse

[Asj]

I was startup a switching power supply. Unfortunately a high voltage pulse originated and damaged my AD2.
A few years ago I damaged another AD2 in a similar way, and now I have two similarly damaged AD2s. 
I hope that only the high-voltage protection parts (e.g. transil) or voltage converters burned up.

Symptoms:
1) The device is not detected by USB
2) The green LED on the AD2 does not blink.
3) The device appears to be quite dead.

Please:
1) Suggestions on what I should check first.
2) Information if there is a company / person who repairs AD2?

Thank you in advance for any help :-)

[attila]

Hi @Asj

Here you can find some troubleshoot/repair instructions. Since the device is not detect I'm afraid it is unrepairable, multiple ICs may be damaged USB, FPGA, ADC...