The PX3 platform typically runs , 5.1.1 (Lollipop) , or 7.1.2 (Nougat) .
Tap this multiple times. If you see a , you're on Android 4.4 . If you see an "N" , you're on Android 7.1 . Rkpx3 Android Update
Place the update file in the of your FAT32 drive. Insert the drive into the head unit's USB/GPS slot. The PX3 platform typically runs , 5