What is the latest firmware for a Avtech KPD674Z

[newby1976 0]

Hi, I have searched this forum and Google and have found lot of conflicting answers regarding the last letter of the model number.

 

What is the latest firmware I can put on a KPD674Z?, I'm currently on 1012-1003-1007-1002

 

Could you please post a link to the new firmware? ...If there is one.

 

thanks in advance