Hello.
I came across a similar problem with 2014 Octavia Columbus (MIB1) system, it suddenly stopped functioning. The display switches on and displays the splash screen with Skoda logo, then reboots a couple of times before finally going blank. The dealership is absolutely useless when it comes to troubleshooting, they are proposing to perform a SW reload to system "to see if it helps". Problem is they would charge almost 200 EUR for the reload - regardless if it succeeds or not 😐. After reading this thread the issue seems to be more hardware related, so I wouldn't like to spend my money on useless SW reload. Do you think the SW reload actually could solve the issue, or would I be better off spending the money on a replacement (2nd hand) module - or getting the current one repaired? I gathered that there's no easy way to test whether the unit is repairable or not without opening it up and performing a close examination?