Xiaomi Mi 3 User Manual
![Xiaomi Mi 3 manual cover](/images/b58a7a234a81ff3fe0358b27/thumbs/thumb175x175.webp)
To factory reset your Xiaomi Mi 3, go to Settings > Backup & reset > Factory data reset. Confirm the action and wait for the phone to reset. This will erase all data on the device, so ensure you have backed up important information.
First, check the charger and cable for any damage. Try using a different charger or cable. Clean the charging port gently with a dry brush or compressed air. If the problem persists, contact Xiaomi support for further assistance.
To extend battery life, reduce screen brightness, disable background apps, turn off location services when not in use, and enable battery saver mode. Regularly updating your apps and the firmware can also help improve battery performance.
To take a screenshot, press and hold the Power and Volume Down buttons simultaneously until you see the screenshot animation. The screenshot will be saved in the Gallery under the Screenshots folder.
Use a microfiber cloth to gently wipe the screen. For stubborn smudges, slightly dampen the cloth with water or a screen-safe cleaner. Avoid using paper towels or abrasive materials that could scratch the screen.
Go to Settings > About phone > System updates. If an update is available, download and install it. Ensure your device is connected to Wi-Fi and has sufficient battery before starting the update process.
Clear cache by going to Settings > Storage > Cached data. Uninstall unused apps and widgets. Consider restarting the device regularly and ensuring the software is up to date for optimal performance.
The Xiaomi Mi 3 does not support external SD cards as it lacks a microSD card slot. Ensure you manage your storage effectively by transferring files to a computer or cloud storage.
Go to Settings > About phone, then tap on the MIUI version number seven times until you see a message indicating that developer options have been enabled. You can access them in the Additional settings menu.
Ensure the camera lens is clean and free of smudges. Experiment with different camera settings such as HDR and manual mode. Keeping the camera software updated can also enhance photo quality.