Normally, applications are installed from our App Store as described here.
However, if you have downloaded an .apk file to your computer, you can install it via a USB connection. There are a few mechanisms for this.
Without Additional Software
Disconnect the battery from the LX1.
Insert a USB-C cable between a USB-C port on the computer and the LX1.
If USB-C is unavailable on the computer, a USB-3.1 high-power port can be used with a USB-A to USB-C cable (standard USB ports on the computer do not supply sufficient power and cannot be used).On the LX1, open Settings > Connected Devices > USB and change the mode to "Transfer Files". The Vuzix LX1 should appear as a device on your computer.
Use your Windows File Explorer or macOS Finder to copy the .apk file to the virtual SD Card of the device.
On the LX1, open the 'Files' application and locate the file you copied.
Highlight the .apk file and click it to install.
Using Vuzix View Application
Download Vuzix View for Mac or PC here.
Install the application on your system.
On the LX1, open Settings > Connected Devices > Allow ADB and toggle the setting to enabled.
Plug the LX1 into your system, and the LX1 will appear in the connected devices list on Vuzix View.
Press the View button to open up the LX1 interface.
Drag and drop the .apk file directly onto the LX1 interface.
Using Android Debug Bridge Software
If not already installed, obtain ADB software from developer.android.com. Follow the setup procedure so that ADB is in your path.
You must explicitly enable USB debugging on the LX1 by opening Settings > Connected Devices > Allow ADB and toggling the setting to enabled.
Once ADB is installed, and the LX1 has USB debugging enabled, insert the USB cable and issue the following in a command window: 'adb install <path to file>.apk'