Update my phone

Hello abeeb224

To update your iPhone's iOS, go to 'Settings > General > Software Update' and if there are any updates, it will be prompted there.

I note that you are posting about iPhone 6. The iPhone 6 can only support up to iOS 12, iOS 12.5.6 being the latest version. You may wish to read the links provided below.

About the security content of iOS 12.5.6 - Apple Support (SG)

Apple security updates - Apple Support (SG)

Update your iPhone or iPad - Apple Support (SG)

I hope the information provided above helps.

Regards

Zarke

The latest version available for the iPhone 6 is 12.5.6. It can not update to anything newer.