Upgrading
I want to upgrade my iPhone 6 iOS 12.7 to 13.5
Question marked as
It is not possible to update your iPhone to iOS 13 or later due to your internal hardware being too old to support it.
The iPhone 6 is over 8 years old.
iPhone 8 and later models are capable of supporting iOS 16.
Here is a list of unsupported iPhones with max iOS supported:
Model Architecture Introduced Max supported iOS
iPhone (1st) 32-bit June 2007 iOS 3.1.3
iPhone 3G 32-bit July 2008 iOS 4.2.1
iPhone 3GS 32-bit June 2009 iOS 6.1.6
iPhone 4 32-bit June 2010 iOS 7.1.2
iPhone 4S 32-bit October 2011 iOS 9.3.6
iPhone 5 32-bit September 2012 iOS 10.3.4
iPhone 5C 32-bit September 2013 iOS 10.3.3
iPhone 5S 64-bit September 2013 iOS 12.5.7
iPhone 6 64-bit September 2014 iOS 12.5.7 <- Your iPhone model
iPhone 6 Plus 64-bit September 2014 iOS 12.5.7
iPhone 6S 64-bit September 2015 iOS 15.7.3
iPhone 6S Plus 64-bit September 2015 iOS 15.7.3
iPhone SE (1st) 64-bit March 2016 iOS 15.7.3
iPhone 7 64-bit September 2016 iOS 15.7.3
iPhone 7 Plus 64-bit September 2016 iOS 15.7.3