How to Change Screen Resolution on Android via ADB (without Root) Now reducing the resolution might sound like a thing that requires root access, but thanks to Google, in the recent releases of Android, it’s now possible to change screen resolution via a simple ADB command without the need of root access. So if you own one of these Flagships with unnecessarily higher resolution like 1440 x 2560 pixels, then reducing the resolution can significantly reduce the battery consumption of Screen on the device.