The wifi stopped working in 0117 recently, and I had it at work while I located a programmer (on the theory that maybe it was the firmware). Sadly while moving it I dropped it ~30cm onto a hard surface and the wifi module fell off the main board. When I resoldered it everything worked again. I reflowed a few other joints on the board that also looked a bit dry. That suggests that the wifi failure was actually due to the quite poor soldering job from the factory.
Sadly my phone is awful at this level of macro, but this is after I re-soldered it. I didn’t really look too closely when it was broken because with the module off it was obvious what the problem was. The capacitor next to it looked like slightly dry joints, just not quite enough heat.
I should have gone round the corner and got Dave@EEVBlog to fix it and make a video. He is the next suburb over.
No, I have very limited surface mount skills but managed to get it done.
I should have gone to Dave, that way we’d get a video. I will open up 116 and have a look at that too, and if it looks suspect will see what Dave says. The workshop downstairs is all set up for this and there’s a proper microscope that I can get hopefully screenshots out of. I just have to bribe the technician 🙂
What I should have done was gone downstairs at work and used the proper microscope rather than faffing about at home. Here’s some shots of 116 opened up. Sorry for not thinking of this before I fixed 117 🙁
I would be more comfortable with just a little more solder on each of the pads that attach the module.