Nord Rack 2 (non-X) EPROM part number and 1.06 OS dump

[frekvencia]

Hello,

I am hunting for the part number for the EPROM and the latest, 1.06 OS dump for my Nord Rack 2 (non-X).

I read somewhere here that a person was able to dump their 1.06 EPROM and re-flash a second, older OS EPROM chip with the newest OS.

I would like to source a compatible EPROM chip from somewhere and flash the latest OS onto it without experimenting on my only working EPROM chip that is currently in my Nord Rack 2.