Samsung Galaxy S4 Verizon SCH-I545ZBAVZW Manual

To perform a factory reset, go to Settings > Accounts > Backup and reset. Select Factory data reset, then Reset device. Confirm by tapping Erase everything.
Ensure the charging cable and adapter are working by testing with another device. Clean the charging port for debris and try a different power outlet. If the problem persists, consider replacing the battery.
Reduce screen brightness, disable background apps, turn off Wi-Fi and Bluetooth when not in use, and enable power-saving mode. Regularly update apps and the phone's software for optimal performance.
Go to Settings > More > About device. Tap Build number seven times to unlock Developer options. Then, go back to Settings > More > Developer options and enable USB debugging.
Clear cache from apps via Settings > More > Application manager. Close unused apps running in the background, and restart your device. Consider a factory reset if performance issues persist.
Press and hold the Power button and the Home button simultaneously until you hear a shutter sound or see a visual confirmation on the screen.
Go to Settings > More > About device > Software updates. Tap Check for updates and follow the on-screen instructions to download and install available updates.
Open the Email app, select the email provider, and enter your email address and password. Follow the on-screen instructions to complete the setup.
Go to Settings > Connections > Wi-Fi. Ensure Wi-Fi is enabled, select the desired network, and enter the password if prompted to connect.
Remove the case if applicable, close unused apps, reduce screen brightness, and avoid using the phone while charging. If overheating continues, seek professional assessment.