To update your DocsToGo software on the eDGe, open the app, then click on "Menu," then choose "Settings." The next menu will offer the option to "Check for UPdates. Click on that link, then you'll see a link for the eDGe-specific update. Click on it and the apk should download. You'll of course need to click on the download icon in the rooftop to actually install the update.