| Action | Path on D800 SD Card | | :--- | :--- | | Map files | /iGo/content/map/ | | POI files | /iGo/content/poi/ | | License file | /iGo/license/ or root | | Global config | /iGo/sys.txt |
Download the map update (often a .zip file like Junsun_D800_iGO_Maps.zip ) to your computer.
Navigate manually to Settings → System → Software Update → Local Update and select the file on your microSD card. junsun d800 map update
Turn the unit back on. It should automatically detect the update and prompt you to "Update" or select "Yes".
The Junsun D800 is an Android-powered aftermarket head unit. Unlike dedicated GPS devices, its mapping software is not tied to a single proprietary system. The D800 typically ships with either , Sygic , or Pre-installed Google Maps (depending on the seller and Android version). A "map update" therefore requires identifying the specific navigation app in use. This report provides step-by-step procedures for the three most common scenarios. | Action | Path on D800 SD Card
Reinsert the card into the device and restart the unit to trigger the update prompt. JustAnswer Troubleshooting Common Issues "No Maps Found" : If maps don't appear after an update, verify the
Check your head unit’s home screen or app drawer for one of these icons: It should automatically detect the update and prompt
Copy the extracted folders directly to the of the card. Do not place them inside another folder, or the D800 won't find them. 4. Install on the Junsun D800 Power off your D800 and insert the microSD card.
: If files fail to unzip, try downloading in smaller parts or using a more stable internet connection to avoid corruption. JustAnswer Do you need the direct contact details
Power on your D800 and go to Settings → About → System Information to note your current version for later verification. Step-by-Step Update Guide