rb 3011 UiAS-RM dead after upgrade to 6.48.6

I upgraded to 6.48.6 on my rb 3011 UiAS-RM.

The router didn’t come back up, the lcd screen is all white
I attached a (cisco) console cable to console port on the back tried with 9600 baud 192.200 baud no luck no output.
I tried the reset procedure power cable out, press reset button for 30 seconds, with a laptop with netinstall on it no joy

Any suggestion’s ?

Thanks in advance,

Bas

use netinstall