NEC ND-4550A firmware problem

Hello,

my NEC ND-4550A has firmware 1.84 and i think it’s an OEM version. I would like to update the firmware but I can’t… I tried with Binflash and it just closed right after I opened it. Other programs just couldn’t find it.

Thank you in advance!

And you have used the w32 GUI version??

I tried all of them.

Then try in SAFE MODE.