Open {“smallUrl”:“https://www. wikihow. com/images/e/ed/Android7settingsapp. png”,“bigUrl”:"/images/thumb/e/ed/Android7settingsapp. png/30px-Android7settingsapp. png",“smallWidth”:460,“smallHeight”:460,“bigWidth”:30,“bigHeight”:30,“licensing”:"<div class="mw-parser-output">I edited this screenshot of an Android icon. \n</p>License: <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="http://en. wikipedia. org/wiki/Fair_use">Fair Use</a>
\n</p></div>"} Settings Tap Security or Lock screen and security Tap the grey “Unknown sources” switch {“smallUrl”:“https://www. wikihow. com/images/d/d5/Android7switchoff. png”,“bigUrl”:"/images/thumb/d/d5/Android7switchoff. png/35px-Android7switchoff. png",“smallWidth”:460,“smallHeight”:394,“bigWidth”:35,“bigHeight”:30,“licensing”:"<div class="mw-parser-output">I edited this screenshot of an Android icon. \n</p>License: <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="http://en. wikipedia. org/wiki/Fair_use">Fair Use</a>
\n</p></div>"} Tap OK if prompted....