[volaltd]

I dont know what kind of progress do you expect but in last post i just described all that needs to be done, arduino you can put it the trash-can.

Sorry, but you give just untested theory in your messages.
1) Firmware for V850 is same for both E and F, it's easy to check via unpacking spdaten and psdzdata;
2) v850 is read-protected so it's impossible to get full dump for use with NEC programmer.
3) Even after full Spansion, v850 and eeprom rewrite with E-series dumps, your CIC will correctly report in all ID it is E, you can use WinKFP to perform full programming, but all front panel signals will be inactive. Volume knob on/off has direct wire and since it low state CIC will constantly reboot. Yes, I tried to wire 5V here and no difference. Probably there is something like soldered jumper for E/F mode switch.

Post please full v850 CIC E-series dump or you can put in trash-can whole this your thread.