Update my phone to version 12.5
Can an iPhone 6 be updated to the version of 14.6
Can an iPhone 6 be updated to the version of 14.6
Yes
Yes
No. iOS 12.X is the end of the line for the iPhone 6.
I want my iPhone to be iOS 13
iPhone 6 supports iOS 12 and got cut off for iOS 13 so it will support 12.5 but it won't support iOS 14.6
Hope I answered your question!
Update my phone to version 12.5