1. How do I download and install apk from Camangi Market?

Before installing any applications, please make sure you have inserted Micro SD card into Camangi WebStation. And the “Third Party Application” must be turn on. Please go to “Applications” by entering “Settings” section first. How to install an application from Camangi WebStation

2. Why the apps downloaded from Camangi Market couldn't run on Android smartphone?

The apps on Camangi Market support WVGA format (800-by-480 pixels), so it can only be run on the devices with supporting this spec.