Device Assist app can be useful for novice Android users. The app does not help you fix all your hardware and software related issues. It detects only few common issues, for instance, it tells that you are charging via a low power USB cable (consider a wall charger), screen brightness settings is battery intensive (lower the brightness) and like that. Device Assist has also an option for sending your device information to Google for getting relevant solution to fix any issues, but if your device is a Nexus or Google Play Edition. Features of Device Assist – Get proactive help with detected issues (GPS, connectivity, battery, etc.) – Get tips to explore new features and improve the performance of your device – For Nexus and Google Play edition devices, gain easy access to live Google support Unfortunately, at the moment, the app is available only in the US and supports only Nexus, Google Play edition and Android One devices running Android 5.0, Lollipop. Google Device Assist can be downloaded from Play Store.
