Is there any way to change language on this 077? i've seen custom lang files for 07 and 09 also for 77 but no 077, will any .LNG file from those work on 077?

Hi! 

1. Prepare an SD card, format it in FAT32. It might work with USB, I haven't checked.

2. Create an empty folder in the root named "NAVIVUP".

3. Insert into AVIC.

4. Go to TESTMODE (Enter the service menu (Press and hold NAVI, press AV-V.ADJUST-AV-V.ADJUST-AV-V.ADJUST, release NAVI). Reboot and enter the service menu. Then move through the menu: short press<+>-up, long press (2 sec.)<+>-right (go to the next page), short press<->-down, long press (2 sec.)<->-left (return to the previous page). V.ADJUST-forward (enter the submenu), AV-back (exit the submenu), NAVI-in some items is used as ENTER.
 5. On the first screen - select the menu "10. Program forced write", go to the next screen of this submenu (2 of 3) and select "3. Take out program".

6. Select destination "SD" or "USB" and press "MENU" to start loading.

7. Wait for about a minute, and do not turn off the power under any circumstances !!NOW COPYING!!", until the message "HIT ANY KEY" appears All firmware is written to the SD card in the NAVIVUP folder.

8 Post a copy of the software here in the archive