mvision 9080 usb crashed

Hello

I was trying to upload the newest firmware to my 9080 today.
Downloaded the software to a usb flashdrive and loaded the file via the menu. I got good in the display but when i restarted my 9080 could not get any picture. and the display shows ----:mecry:

I have tryed to load a new sofware via å computer and a rs232 cable but i can not get any connection to my 9080.

Is my mvision dead or is there anything i can do to fix my problems?

i have tryed to forcing the firm several times but i really can not connect to my 9080.

But i use a usb to rs232 adaptor,can this be the problem?