Scroll to the bottom of the menu and select About device . Check for Updates: Tap Software update and then Update now .
Samsung no longer provides OTA updates for the Galaxy J1. If your goal is , consider replacing the device, as the J1 cannot run modern secure apps (banking, UPI, etc.) reliably. samsung j1 software update
Protecting your data from vulnerabilities is the most important reason to stay current. Scroll to the bottom of the menu and select About device