Gather all neccesary tools and place your iPhone 3G S on a clean, flat surface. Use a soft cloth or towel to place under it.

Take a look at the back of the iPhone 3G S. It’s pretty much the same as the 3G version.

Very similar to the “regular” iPhone 3G, the 3G S comes with: earbuds, USB charger, USB Cable, Manual, SIM Opener, and of course the actual iPhone 3G S (16GB Black for this guide).

Just like before, we need to remove the bottom 2 screws by the dock port. Simply use your small phillips driver to remove them.

To get the iPhone 3G S LCD Screen lifted, you will need a small suction cup or to poke a paperclip through the screwless holes in a hooked motion.

A suction cup is key. Don’t get too far ahead of yourself. Be very careful when lifting the LCD module. There are several cables attached inside, and if you lift to quickly, you will tear one.

Lifting up very carefully, you will be able to remove the 3 ribbon cables highlighted in red.

You can also remove the far left cable at this point. Orange stickers will help you find the cables inside.

#1 LCD Screen
#2 Digitizer
#3 Ear Speaker
#5 Headphone Jack
#6 Wireless

Note: #3 is hidden under clips #1 & #2.

This step is fairly straightforward, just pop the cable up with a safe-open case tool or a flathead screwdriver. The LCD screen/Digitizer module should lift right out.

It’s worth noting that we’ve already identified parts that differ from the iPhone 3G. The LCD screen looks to have a different driver package, and components on the end of the cable have been changed. No word yet if the iPhone 3G LCD is compatible with the new iPhone 3G S and vice versa.

View of the front half separated from the back panel.

Still very similar to the original iPhone 3G.

To free the LCD module from the digitizer frame, there are some side screws (6) that must be removed. See sub pic for screw locations.

Don’t force the LCD out, make sure all the screws have been removed or you will crack the screen.

We can focus on the system board removal now. 1st remove the screw securing the camera module, then pivot the module out of it’s cradle as if the left side was a hinge. While this hangs loose, proceed with removal of the screws.

To remove the system board, carefully unplug molex connectors #4, #5, #6, & #7 if you have not done so already. There should be (6) screws evenly spaced around it’s perimeter.

WARRANTY ALERT: You also have to remove the longer screw (screw #7) hiding beneath the warranty sticker. No turning back now!

Once fully detached, gently pry up the bottom of the board first. Once the board clears, pull the whole thing out and up (towards your chest). Remove the camera molex and it’s clear. Battery removal is simple. it’s held down with mild adhesive. Take a safe-open case tool and pry it out. The battery is solderless and easily replaceable.

APN: 616-0434
VPN: APPLE-08-003-01(GG)
Li-ion Polymer Battery: 3.7V 4.51Whr

Looks very similar to the original iPhone 3G battery. We will check compatibility ASAP.

Removal of the headphone jack is easy. Make sure all the screws have been removed and with a little bit of pressure, you can now remove the headphone jack and button assemblies.

Dockport can be slipped out with ease, just make sure all of the screws have been removed so you don’t have to force it out.

Some other smaller parts can be removed from the backing now. the vibrator module, GPS antenna, and SIM spring can all be taken out. Most are held in place with mild adhesive.

To remove the iPhone 3G S digitizer, you will need a heat gun. This is a very tough step, please use caution. You will probably remove the digitizer only if it’s broken, so please go slow and dont cut your fingers on broken glass.

Go one step farther and you can remove the ear piece speaker and home button. Careful though, you will have to buy a new digitizer bezel if you remove the home button. The home button is held on with plastic pegs which cannot be replaced.

View the glorious iPhone 3G S in all it’s glory! Stripped down to the bone, we can now reverse these steps to get the phone re-assembled.

System board chips and part numbers can be seen below. Please view the comparison guide for more details.

iPhone 3G S system board is shown on the left, right board is iPhone 3G.

CPU - Samsung
339S0073ARM
K2132C2P0-50-F
0N1480911
APL0298
N1TVY0Q 0919

NAND Flash Memory - Toshiba TH58NVG702ELA89
IA8816
TAIWAN
09209AE

System Memory - 337S3754
CMA
G0919
5Y9307885E4

Infineon - 36MY1EE
A9177314
Z171033B