I can neither charge the iPhone nor connect it to iTunes. Nothing happens when the phone is connected to a USB/charging cable...

If the ribbon cable is ok - check if you broke that SMD element near Connector4: http://www.ifixit.com/Answers/View/31164...

It seems you have broken a SMD element near Connector4! Solution here: http://www.ifixit.com/Answers/View/31164...

Glue the "wing" back to the board and make these two pathes: http://www.mauron.net/iphonerepair/last_... "You should first glue the corner so it is tightly fixed to the motherboard, and afterwards restore the electrical continuity between the antenna contact pad and the track going to the small coax connector, as well as between the small grouding "spring" and the motherboard ground as in the picture below." HowTo: "You would need to solder two wires. The first from the antenna pad to the track as explained in full details above. And the second to connect the grounding contact (the one you can see all the way left in the first picture, which gets pressed against the metallic frame when the board is sitted in place) to the board's ground." (From: http://www.mauron.net/iphonerepair/)

For 3G there is no real solution... Infos about 3G backlight path here: http://forum.gsmhosting.com/vbb/f631/3g-backlight-circuit-explained-last-1129485/ --- For 3GS I found two possible fixes for that problem! 1. "I fixed my backlight issue on iphone 3GS" (Jason Simmons replied 4 months ago) - http://getsatisfaction.com/apple/topics/... --- I did the same thing. Got mine wet in the lake and got back and backlight did not work. Took it apart and got what water was left out. Put it back together. Phone worked but no backlight. So I decided to take it apart again as a last ditch effort a couple of days later. Wallah!!! I fixed it. Here is how I got my backlight back to working. You have to take about your iphone. There are instructions on the web to do this. Disconnect plugs 1 and 2 and ribbon 3. I had to remove number 5 cover cafefully. It will pop off. See the image. Just above the pointed out area of the coil, there is a small area of circuity. Mine had just a little bit of corrosion. Had to look hard to see...

I the backlight didn't work it could be a defect coil, too! See picture (3GS): http://img686.imageshack.us/img686/9351/... From: http://www.ifixit.com/Answers/View/18595...-LCD+replacement

The LCD is not plug-and-play compatible. Your need to restart the phone after connecting the LCD. Hold HOME+POWER Button till it restarts.

There are a few good tutorials on YouTube! "Repairing the SIM-reader of iPhone 3G. (The "No SIM" error")": http://www.youtube.com/watch?v=DFh7Vp1As... and "iPhone 3G Sim Connector replacement".

I found an answer myself: This element is coil! Connect like this: http://forum.gsmhosting.com/vbb/f631/iph...-3gs-logic-board-missing-component-1000013/#post5987837

I found a great tutorial on the net. Maybe it will help you! "How I recovered my iPhone's lost GSM signal!" http://www.mauron.net/iphonerepair/

The WIFI antenna is in the upper part of the phone - the Cellular antenna is at the back of the dock connector assembly! They have nothing to do with each other. I found a great tutorial on the net. Maybe it will help you! "How I recovered my iPhone's lost GSM signal!" http://www.mauron.net/iphonerepair/

Since the battery solder pads are lead-free soldered you need a higher temperature.

Solder with a temperature of about 320 to 340 °C. (I had to go up to 420 °C at my Soldering Station!?)

Quote from barlowdo:

Update: I have been told that basically all I have accomplished is to raise the glass up above the surface of the metal case and really have not even got to the plastic bezel and disconnecting the clips. So maybe I have got no where so far.

The metal clips from Step1 (shown in red) that snap on to the plastic frame are not right at the side of the display glas (under the black rubber) but a little more to the middle!

I thought I opened the metal clips - but what I really did was broke the plastic frame! Now my plastic frame is only on the top and bottom but it still fixes the front panel...

Quote from James Bond:

Step 2

*Gently insert an iPod opening tool between the glass front panel and its plastic surround...

First pic from Step 4 shows what is meant.

But on all the other pics it looks like the opening tool is inserted between the plastic surrounding and the metall body!?

I checked again and the pics from Step 4+ are correct.

But I would advice the following way:

Quote from Tom:

If you insert the tool between the silver case and the plastic surround, you may be able to remove the digitizer and plastic surround as a "single piece".

Quote from Tom:

If you insert the tool between the silver case and the plastic surround, you may be able to remove the digitizer and plastic surround as a "single piece".

That's the way I did it!

Step 2

*Gently insert an iPod opening tool between the glass front panel and its plastic surround...

First pic from Step 4 shows what is meant.

But on all the other pics it looks like the opening tool is inserted between the plastic surrounding and the metall body!?