Glass Back Cover Replacement for AT&T iPhone 4 GSM ATT only - Black include Screwdriver For AT&T GSM iPhone 4G Only. This Glass back is a High Quality Replacement for your Scratched, Damaged or Broken Back Door / Battery Cover. Color: Black Note: AT&T Model Only, This will not fit your Verizon or Sprint iPhone 4 and will not fit the 4s Installation guide is not included, please search for guides online or use some technician service.