Specifications
iPhone Basics — Overview 13
2012-02-21
Overview
Scope of this Document
This Apple Technician Guide provides troubleshooting steps, take apart procedures and other
information about iPhone 4 and iPhone 4S. It is designed to be used in conjunction with the
iPhone Visual Mechanical Inspection guidelines (070-2515).
The iPhone (original), iPhone 3G and iPhone 3GS are covered in a separate document.
iPhone Model Feature Dierences
iPhone 4 introduced a faster A4 chip, high-resolution 960x640 Retina display, 5MP camera with
LED ash, VGA front camera, and FaceTime. Separate models are available for GSM and CDMA
networks.
iPhone 4S introduced a faster dual-core A5 chip, 8MP camera with 1080p HD video recording,
and Siri voice assistant. iPhone 4S is a world phone for both GSM and CDMA networks.
iPhone 4/4S at a Glance
not in iPhone 4
(CDMA model)
On/Off