The MacBook Air Retina 13-inch 2020 utilizes the CD3217B12 power IC to manage charging and power delivery via the USB-C port.
Failure of this IC can lead to issues such as inability to charge, no power, or unstable charging behavior.
The repair process involves removing the mainboard, desoldering the faulty IC, and replacing it with a new one using BGA soldering techniques.
This procedure requires an experienced technician and specialized equipment to ensure safety and effectiveness.
Post-repair, the device undergoes thorough testing to confirm stable and safe operation.