In order to hard reset a Samsung Galaxy Express I437, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
Samsung Galaxy Express I437 device will be brought back to the default configuration of a brand new device.
1. Switch off the phone by press-holding the Power button.
2. Press and hold the Volume Up + Power + Home buttons. Release Power button when the phone vibrates.
3. Let go of other buttons when the Recovery Mode menu opens.
4. Using Volume buttons to navigate to it and Power button to select it, choose Wipe data/Factory reset option.
5. Next, select Yes and Reboot system now.
6. Yay, the hard reset process is complete.