Samsung

Samsung J510FN

Hit the start button at the bottom and wait for the installation process to complete. Your device will automatically reboot with the newly flashed firmware. As we mentioned above the limitation of OTA method is that you can update your device to latest firmware only as long as you are present inside the region where the OTA has landed and your device is in stock un-rooted condition because rooted device will not able to receive the OTA updates then you have to un-root your device or switch to the alternative methods like Kies or Odin.