I Super-Glued my Motherboard... Now the Screen is Silent!

Hi everyone,

I recently opened up my Google Pixel 5 for a battery replacement. During the process, I ran into a bit of trouble with the motherboard contacts located near the front-facing camera.

One of the two large pogo-pin/contact pads (highlighted in the attached photo) detached from the board. Thinking it was held by adhesive, I tried to secure it back using a microscopic amount of super glue on the side, hoping the pressure from the screen would be enough to maintain electrical contact.

Unfortunately, after reassembling the phone, the earpiece (under-display speaker) is completely dead, though the bottom speakerphone works perfectly. I suspect the glue acted as an insulator or the alignment is slightly off.

I have a few questions for the experts here:

  1. Identification: Can someone confirm these are indeed the primary contacts for the piezo-electric screen actuator?
  2. Original Attachment: How are these pins originally attached to the board? Is it standard SMT soldering, or does Google use some form of conductive adhesive/thermal bonding here?
  3. The Fix: I only have a standard soldering iron and a strong magnifying glass (no micro-soldering station or microscope). Is it suicide to try and solder this back with a regular (but very thin) iron?
    • If yes, what’s the safest technique to avoid bridging nearby components or lifting the pad further?
    • Should I use a specific type of solder or flux for such a small area?
  4. Alternatives: If soldering is too risky, would a conductive silver epoxy (Contactol) be a viable "cold" solution, or is the signal too sensitive for that?

I’ve attached a photo of the area. You can see where I attempted the glue fix (in the red box). Any advice would be greatly appreciated before I risk opening this fragile screen again!

Thanks in advance!

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