Car Solutions QROI2-RGB Installation Manual page 11

4. How to use
4.6 User APK Installer
※ Able to install APK by connecting USB stick
• Run QApkInstaller on the app list
• Copy and paste APK file to USB stick and connect USB stick to QROI2
(Caution: connect USB stick to USB #3#4)
• Select the external USB stick driver in a red square and APK files will be appeared