Xiaomi Redmi 3 User Manual

To extend battery life, reduce screen brightness, disable background apps, use Battery Saver mode, and turn off unnecessary connectivity features like Bluetooth and GPS when not in use.
Ensure the charger and cable are functioning by testing with another device. Clean the charging port and try a different socket. If the issue persists, consider a battery replacement or service center visit.
Delete unnecessary apps, clear app cache, transfer photos and videos to external storage, and use the built-in Cleaner app for optimization.
Go to Settings > Additional Settings > Backup & Reset > Factory Data Reset. Ensure all important data is backed up before proceeding.
Overheating can be caused by heavy usage or a demanding app running in the background. Allow the phone to cool down, close unused apps, and avoid using the device while charging.
Go to Settings > About Phone > System Update. Check for updates and follow the on-screen instructions to download and install the latest software version.
Clear cache, uninstall unused apps, and restart the device. Consider a factory reset if the problem persists, after backing up important data.
Go to Settings > About Phone and tap on 'MIUI version' seven times. Developer Options will then be accessible in Additional Settings.
Press the Power button and Volume Down button simultaneously until a screenshot is captured. Alternatively, use the screenshot option in the notification shade.
Restart your device and Wi-Fi router. Forget the network and reconnect. Ensure airplane mode is off and check router settings for any restrictions.