Samsung Galaxy S9 Unlocked SM-G960UZDAXAA Guide

To perform a factory reset on your Samsung Galaxy S9, go to Settings > General Management > Reset > Factory Data Reset. Confirm by tapping 'Reset' and then 'Delete All'. Ensure you backup your data as this will erase all data on the device.
To improve battery life, reduce screen brightness, disable background apps, and enable battery saver mode. Additionally, turning off unused connectivity features like Bluetooth and Wi-Fi can help extend battery life.
Your Galaxy S9 may overheat due to running intensive apps or being in a hot environment. Close unnecessary apps, avoid exposure to heat, and perform a software update to resolve system issues.
To take a screenshot, press and hold the Power and Volume Down buttons simultaneously until you see a flash on the screen. The screenshot will be saved in the Gallery app.
If you forgot the password, use Samsung's Find My Mobile service to unlock your device remotely. Alternatively, perform a factory reset through recovery mode, but note this will erase all data.
To update the software, go to Settings > Software Update > Download and Install. Ensure your device is connected to Wi-Fi and has sufficient battery charge before updating.
Use Samsung Smart Switch to transfer data. Install the app on both devices, connect them via a cable or Wi-Fi, and follow the on-screen instructions to transfer your data.
If your Galaxy S9 is slow, clear cache data, uninstall unused apps, and ensure you have the latest software updates. Restarting the device can also help improve performance.
To enable Developer Options, go to Settings > About Phone > Software Information, then tap 'Build Number' seven times. Developer Options will appear in the main settings menu.
Connect your Galaxy S9 to a TV using a USB-C to HDMI adapter or use a wireless method like Smart View or a streaming device like Chromecast to mirror your screen.