1 - 2 uren
This problem is as surprising as it is boring. One day, I simply couldn't fit my headphone audio cable in the audio jack. It just didn't go in all the way. I tried shoving in the cable, I tried picking at it with sharp objects, and I even tried supergluing a small stick to whatever might have been in there to get it out, but nothing worked. I decided to replace the part entirely.
The first time I took apart my phone was to try to get at the audio jack from the inside, but this offered no advantage. I didn't have the part yet so I put it back together.
The second time I took apart my phone was to replace the part, but I couldn't get the standoff screws out. I put my phone back together and bought a flathead 3/32" (2.5 mm) screwdriver from iFixit.
The third time I took apart my phone I completed the repair. I bought a used part. It feels a little clunky but hopefully it'll loosen up a bit with time. Make sure you read and follow all the directions EXACTLY. The directions are swell. However, the flathead screwdriver I bought from iFixit DID NOT WORK. Perhaps they have another screwdriver but the one I bought (3/32 in/2.5 mm) was too thick to be used. I ended up using the metal battery connector bracket (removed in Step 18) to loosen the screws and the front panel assembly cable bracket (removed in Step 12) to turn the screws. I probably violated some cardinal rules of iPhone repair and warped the pieces a bit but at least it worked.
Make sure you have ALL the tools before you take your phone apart. Otherwise you'll be very disappointed when you realize four screws separate you from your good as new iPhone. Also make sure you have the correct tools—double check the tools will actually do what you want before you buy them. Consider buying tools from places other than iFixit (I got most of the tools I needed from Amazon for $5 and in retrospect could have completed the repair the first time just with that and some patience).