hello dji ,
I've updated IOSD MARK II, and after the updates became completely destroyed.

Is the solution to repair it?

write a email to  support@dji.com

Yes you will need to send it in.

Hello
may be for you also happened , Failure IOSD mark II .

Failure :
1.Not connected to a PC (computer can not detect)

2.Video output is not

solution :

open the IOSD frame, After opening, RAM out of the slot and discard.

To do this you need a cutter , To remove the Glues Silicone.

You can replace the RAM 4 GB, 8 GB of RAM use.

Congratulations you've been able to Debugging.

And do not need to spend money to repair send.

http://forum.dji.com/thread-53961-1-1.html