Erase all content and settings
I have an iPhone 6S Plus obtained from Verizon many years ago. It’s unlocked now. I’ve switched to another carrier without any issues except in “Settings” there are still some footprints of Verizon.
If I erase all content and settings will this absolutely remove all footprints of Verizon? I’ve not found a definitively “clear” answer to this question yet.
iPhone 6s Plus, iOS 15