How can I get OS 15
How to update software 15
iPhone 6 Plus
How to update software 15
iPhone 6 Plus
An iPhone 6 can't be updated beyond 12.5.7, it doesn't have the hardware needed to run anything higher.
If you need a higher iOS version, you will have to purchase a newer phone.
To update to 12.5.7 _
Go to Settings > General > Software Update.
This link will show you how to update your iPhone, iPad, or iPod touch using WiFi -
Update your iPhone or iPad - Apple Support Update your iPhone or iPad - Apple Support
This link will show you how to update using your computer -
Update iOS on iPhone - Apple Support Update iOS on iPhone - Apple Support
An iPhone 6 can't be updated beyond 12.5.7, it doesn't have the hardware needed to run anything higher.
If you need a higher iOS version, you will have to purchase a newer phone.
To update to 12.5.7 _
Go to Settings > General > Software Update.
This link will show you how to update your iPhone, iPad, or iPod touch using WiFi -
Update your iPhone or iPad - Apple Support Update your iPhone or iPad - Apple Support
This link will show you how to update using your computer -
Update iOS on iPhone - Apple Support Update iOS on iPhone - Apple Support
I want to update my software OS15
Then you will need to purchase a newer phone capable of running a higher iOS
How can I get OS 15