The iPad 4 was released with minimal fanfare, since it was on the heels of the much anticipated iPad 3. As such, not much changed in terms of repair. It still uses a ton of glue underneath the glass, making thing difficult. It still can be a messy job if you are not prepared. But what else?
One big difference with the 3rd and 4th generation iPads is the connector. The 3rd gen has a 30-pin dock connector and the 4th gen has the Lightning connector. It also comes with the Apple A6 Processor, 1.2MP Facetime HD camera lurking inside, with the ability to shoot 720p HD video and some other minor upgrades. All-in-all, much like the iPad 3 repair and teardown.
Phillips 00 Screwdriver
Plastic Opening Tools
Pry tools, guitar pics
Everyone offering Apple repairs should be covering this, likely with parts in stock. It’s the same LCD and Digitizer as the iPad 3 so they should have it in stock and if the do not, call them slackers.