1 - 2 uren
Dock connector was corroded and thus totally voided anything Apple would do to the phone. Battery was failing as well. So when the phone started to heat up to dangerous levels, I decided it was time to do something, since Apple's recommendation was replace the phone (for $279) or stop using the phone. So I went with a new batter (plus tools) and a replacement dock connector. Total cost, $60.
I studied the step-by-step guide offered on the site. Made notes. Before even taking the phone apart, I laid out some paper and lined it with two sided tape. I proceeded to label boxes by step number and sectioned off each step box with size and number of screws removed in that step. I didn't purchase the magnetic work mat, so this was the next best thing and it was free.
All I did was take my time and followed through on the steps. In all, it took me about 3 hours. My one hang up was the plate that covers the screen cables. I didn't seat it properly (there's a note on the guide that I apparently missed) that was causing the screen to rock back and forth when everything was assembled. But once I properly seated that cover and put the screen back on, everything was perfect.
Removing the speaker connectors from the dock assembly was a breeze. Just use a plastic toothpick or something non metal to pull the adhesive cables off.
I replaced my battery, so the removal process was kind of a pain. Since the battery was junk anyway, I didn't have any hesitation deforming or damaging the edges of the battery. But if you were going to keep the old battery in there, I feel like you would be able to make the repair without removing the battery to simplify a few things.
Last word of advice: Just take your time. This isn't brain surgery.