If you know G-Lon you know they have some spectacular surface-mount rework and repair videos, among other treasures. This iPhone 7 ‘Touch ID’ repair series is pretty indicative of their craft (and skill – skill I definitely do not have!), and I especially like the custom tool they designed for this repair, which their soldering iron threads into for the purpose of transferring heat from below:
They then get up close with the repair, replacing the IC:
Watch the two quick videos below for more:
And while not about the repair process, in this next video they examine the fingerprint circuit in closer detail:
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