Verizon iPhone 4 Teardown Summary: Bill Detwiler cracks open Verizon iPhone 4. Although similar to the AT&T version, this Apple smartphone has some significant differences. By Bill Detwiler | February 16, 2011 -- 07:05 GMT (23:05 PST) Follow @billdetwiler Previous | Next Image 59 of 79 This photo shows the back of the AT&T iPhone 4's main PCB. Topics: Hardware, Mobility, Smartphones, Verizon Kick off your day with ZDNet's daily email newsletter. It's the freshest tech news and opinion, served hot. Get it.