[daMassa]

I read most of this topic and found out some very useful information. Despite of that I need help. We are trying to update navigation on friends Audi A4 2010. How can I be sure which version of navi do I have?
This one in my friends Audi has color screen, and 2 SD card slots below. It has round button without joystick on it. So that must be 3G and not 3G plus. But how can I know if it has HDD option on it or not? Currently there is no navigation maps on it (It says please insert media, or something similar).

Here are some information that I got from version info and green menu.

Train name: BNav_EU_0022_D1
MU Version: 0048
Data base version 4G0919884F_ECE 5.10.5
HW Version MU: d1 9303
release = "Audi MMI3G ECE E5.10.5"

So, I would appreciate some advice, is this particular navi with or without HDD? And also which is the correct and latest firmware that I need to download for that version. (Is it BNav_EU_K0257_2_D1 correct one, and is it necessary to install any other firmware update before that one, or I can go directly to K0257).

Many thanks in advance