I want to update my iPhone 6 Plus to iOS 15.1
I want 15.1 update
[Re-Titled by Moderator]
iPhone 6 Plus, iOS 12
I want 15.1 update
[Re-Titled by Moderator]
iPhone 6 Plus, iOS 12
Sorry, but that is not possible for an iPhone 6.
It can be updated to iOS 12.5.7, no further.
An iPhone 6 plus 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.
I want to update my iPhone 6 Plus to iOS 15.1