After downloading the tablet, tap the install on file and then click Open again. The Tubemate look is similar to YouTube, but it has an extra frame around it. When you see a YouTube video in the tube, the Bright Green Color download button will appear.Now search the video that you want to download or tap on the menu icon again at the top left. Select the URL and paste the address of the video from the web browser. Tap on it and again a progress bar will appear, which will keep you informed of the video. After that the video format will appear, you can download the video according to the quality and resolution according to your device’s space in any format.Open the setting and go to Security. Scroll to turn this setting on by going to Scroll and Unknown sources. Now go to the TubeMate YouTube Downloader website and select one of the verified sites. You will get a warning message about downloading APK files, then click OK.