Replacing front panel. Pressure contact came off of logic board.
Replacing the front lcd/digitizer and glass with a unit I bought from ifixit.com due to a fall and major glass break.
Teardown went fine. The front install went fine. (love those side screws and washers).
When I went to put in the logic board, I found that a contact piece had come off the very top of the logic board. This piece makes contact with the outer frame.
Here is a stock photo of the logic board showing where this contact goes
Here are front and back pictures of the clip/contact piece and our logic board:
I'm very nearly certain that this has to be reattached. I'm also pretty certain that it needs to be soldered so that it is conductive to the logic board.
I am not at all experienced soldering, so I'm wary of trying this. Anyone have any experience with liquid solder or conductive adhesives?
At this point, the phone is useless as it was when it fell in the parking lot - so soldering on the logic board might have to be something I attempt.
So my questions are:
1. Anyone know of a liquid solder or glue that will work well?
2. Anyone have a good source for a replacement logic board? (we've already got the cost of the screen invested, so we may have to spend further)
3. Anyone know exactly what this piece does and maybe I don't need to do anything?
Thanks in advance to anyone who can offer some advice. I appreciate your time.
Is this a good question?
2 Comments
I'm cautiously optimistic that I fixed it. I used a product from MG Chemicals (a Canadian company) called Silver Conductive Epoxy. It was not cheap as Jeff Stephens suggests. It was $34.99 for .35 oz (14 g).
I glued the clip back onto the motherboard. After the curing time of 4 hours, I reassembled the phone. At this stage, it all works. My partner is syncing his stuff back onto it. The screen and digitizer work. Wifi and phone both work. Haven't tested Bluetooth yet. Both cameras are working also. It's charging and moving music and apps over as I type.
I'm not certain that the epoxy will hold forever, if and when it fails, I'll learn to solder or just re-glue it if our next phone upgrade is in the near future.
Thanks for the help from the support folks at ifixit.com and also the answers here. I appreciate it.
by tomkarl
Well, that's excellent news, tomkarl. Here's to what looks like a successful fix.
by Jeff Stephens