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iPhone 7 - U3101 Audio IC Replacement

指南信息

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      说明(指南)步骤

      第 1 步 — Remove U3101

      Remove the chip cleanly, with hot air. On my Quick 861DE rework station, I use as settings 400 °C and 100L/min. For you to decide which settings you prefer, you can find the Quick 861DW on the shop.

      第 2 步 — Verification with the schematics

      If we compare to the diagram on the PhoneBoard software;

      第 3 步 — Put a jumper

      Take copper wire with a diameter of 0.02mm

      第 4 步 — Connect the remaining jumpers

      The procedure is the same for F12, H12, J12. A12 and B12 are grounded and are not used for U3101 operation, no need to jump.

      第 5 步 — Reballing the U3101

      Put on some flux.

      第 6 步 — Check the balls

      Extract the chip by pushing with a thin tweezers.

      第 7 步 — Replace the chip

      And we end up putting the chip back. Flow, position and solder with hot air.

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