Im looking for the correct english language files or either a custom firmware for the MRZ099

I have managed to get into the menu using the button combo below.
 

"To enter this test mode in the MRZ009, follow these steps: 

1. Press and hold the NAVI button (right button with Japanese characters). 

2. Press AV, then the left button with Japanese characters (AV + left button with characters alternately 3 times). 

3. Release the NAVI button and the device will reboot into test mode. "

this is the first screen that appears after reboot (using google translate)

I then selected  "maintenance"

next i am presented with the next screen below

nothing shows in the HDD 1-4 directories (they look empty)

so i now select "NAND" and i am presented with the following screen below

next i selected "system" then "Language"

there is nothing in the language folder?

this image is from the "forced program write" from the first menu, i am presuming this is where i would write new firmware/files to the system?

this is from the "about" screen in the main menu (using google translate)

so my question is how and where can i change the language files?

any further info would be greatly appreciated.

Anybody have any info, looks like I may have to buy a new head unit....

The model above is what I have. I would also greatly appreciate a way to make English menus on it. I would also love to just turn the NAVI sounds off completely so it doesn't make noises every time I move my hand... I'll just be happy using Google maps on my phone.

Hi

I have same model AVIC-MRZ099 so any chance to translate menu from japan to english? looking any solution. thanks

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