Use the service menu to copy all folders in the USER directory to an SD card or USB drive before making any changes. Replace Language Files:
Map data is region locked . The mapping software (Mor info or Zenrin) rarely supports English road names. You cannot change map language without replacing the Japan SD card with a non-existent Western one. Use your phone for navigation and the MRZ77 for music/backup camera.
On the Home screen, look for the icon labeled "設定" (Settei) or a generic Gear icon.
Delete the original PF090JPJPN.lng file found in USER\PRG0\APL\LANGDATA\ and USER\PRG1\APL\LANGDATA\ . pioneer carrozzeria avic-mrz77 change language
Generally, no. Pioneer never released an official Western firmware for the MRZ77. However, many users have successfully switched their audio interface to English, leaving the navigation (Map) side in Japanese.
The AVIC-MRZ77 is designed to work with the Pioneer Smart Sync app. Sometimes, changing the language on your connected smartphone can force the head unit to switch languages or display English navigation.
You likely turned off the display. Look for a physical button labeled "Disp Off" or "Screen" (左上の画面オフボタン). Press it to wake the screen. Use the service menu to copy all folders
(Google Translate camera mode) to read menus.
If an English option appears as the second choice, select it and confirm. Note that this often only changes specific AV functions, while navigation remains in Japanese. Advanced Method: Manual File Replacement
The is a premium Japanese-market navigation system that can be difficult for non-Japanese speakers to navigate. While it lacks a simple built-in setting to switch entirely to English, you can achieve a more usable interface through a few different methods, ranging from basic navigation tricks to advanced file modification. Direct Navigation (Partial Change) You cannot change map language without replacing the
If you are navigating the standard menus, look for these characters: 設定 (Settei) システム (Shisutemu) 言語 (Gengo) JustAnswer specific download links for the conversion files or a guide on how to pair your Bluetooth using the Japanese menus? Pioneer Carrozzeria Avic-Mrz77 language change instructions
Press the physical MENU button to access core functions.