MN Classic 4.0.2 Logo and Flickering Screen

[Digitaldiag]

Hi,
I have a MN 1 original version was 4.0.2
I tried to update using official software , but it got stuck at loading.
So I checked the inand to be faulty
I managed to write the 4.06 dump to a SanDisk card and when I was testing it was ok.

So while I was putting it back together I am not sure what happened
Now when I power on the logo stays on and the screen flickers every few seconds and nothing loads.

I checked the resistors, they are all 10k.
However when I check the voltage on the cmd pin it's only 1.7v, and when the flicker happens the voltage also changes to 1.9v.

Do you thing I have blown the main cpu ?

[MIdev]

Hello
did you format the storages card and card4 with manamana?
then copy the most recent version 4.1.0.
version 4.0.2 is not successful, as generally it is the processor which burns.