Can someone find the picture of the Verizon iPhone 7 trade in chart ? It showed how much each 7 would cost monthly after an iPhone 5 or 6 trade in .
I have an iPhone 4s with iOS 5.1.1 -LRB- never have any updates -RRB- . Can I update the iOS to another version instead of 8.x.x , such as iOS 6 or 7 , or not ?