Please Help Me Identify these Damaged iPhone 5 Board Components
Hello, sorry for the long post, but I wanted to be as helpful/detailed as possible about the symptoms elicited. If you aren't up for reading this, the photo basically tells the whole story =P.
______________________ How I Messed It Up:
While disassembling my past-warranty Verizon Iphone 5 (model A1429), I regrettably appear to have damaged 4-6 of what i believe at extremely tiny... capacitors?, right between the battery port on the motherboard and the screw hole to its right. I believe I crushed 1-2 with my screw driver, and damaged a few more by using too hot a soldering iron to remove the debris... (I know - brilliant, right?). I removed most (4/6) of these busted components, because there were definitely beyond repair, but a couple I left are at least somewhat damaged, so I think all 6 will require replacement. I'm not really sure if they are resistors, capacitors, or fuses, but they melt very easily, and are filled with a white substance... so will need to install the new ones at low temp - might use a cold-solder epoxy...
Before figuring out what I had done, I did take the phone apart a few times (progressively further damaging this area in the process). Initially, I had JUST lost the mic for non-speakerphone calls and voice-notes.
Before I took a look with good magnification, it was working fine other than that mic, so I replaced the lower microphone / headphone / lightning wire port insert (which didn't help). The replacement mic made no difference. Upon further messing around, I eventually lost the screen picture (it flashed vertical lines and then went black) and it was not recoverable. I then tried replacing the screen, which also didn't help, so I finally realized it must be the logic board, and pulled out my low power microscope. The attached photo shows where on the board I am talking about (on left) my board (in center) and a picture of a functional iphone 5 logic board I found online, on which I circled the components I damaged in red.
What I'm Hoping you Guys Can Help With:
They all looked the same at 20x, as can be seen in the photo. I think I'm capable of replacing them, (either by heat gun with low temp solder, a low temp iron with a needle point, or conductive epoxy).
But, I need to know what they are, and where I can get others (I guess I might have to buy a water damaged $20 board on ebay? and try to desolder them from it?). I did cause a little spark once before removing the battery, but *think* nothing else is damaged (carefully removed the metal covers and inspecting things). I know fixing it is probably a longshot, but really want to try (and frankly can't afford replacing it for >$100, or paying someone to for the same). If nothing else, and despite all odds I really want to try to do this myself, if for learning from it alone. I know I could buy a new board If i had the money, or pay apple to do an out of warrantee replacement, but I would REALLY appreciate your help in letting me try to do it myself - I know I f'ed up and was stupidly reckless. But, I have learned a hard lesson in regards to how exceptionally delicate phone logic boards are. Please let me know if I might provide any other helpful info!!
EDIT: ooh, one more thing (don't know if it will help) I used a multimeter to determine that there is power (4-5.4V or so depending on the exact pins, going to the motherboard from the charging port at the bottom of the phone, but despite this, no voltage (at all) gets from that part of the board, to the battery port just below it. Obviously, and as is visible in the photo, the circuit is currently broken without these components, but I'm guessing I can't just short them out, or they wouldn't have been there in the first place.
EDIT #2 (2/16/15): Finally got around to trying to solder this thing, and, due to it being very difficult, was wondering if conductive epoxy would work? to be clear - something like this: http://www.amazon.com/0-2ML-Silver-Condu...
NOT just normal epoxy.
THoughts? I worry about any potential effects of increased resistivity, compared to normal solder? Thanks!
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