The MacBook Pro M1 13-inch 2020 (A2338) features Apple’s custom M1 SoC and a multi-rail power architecture controlled by charging ICs like ISL9238 and CD3217, along with system PMICs near the SoC.
Common issues include failure to charge, no boot, overheating at the USB-C port, or unexpected shutdowns caused by shorted or damaged power ICs.
Repair involves logic board removal, testing power rails and input current using precision tools and Apple schematic references to locate the fault.
Faulty components are desoldered and replaced with OEM-grade ICs using hot-air rework under ESD-safe conditions to protect the board.
After repair, the machine undergoes full diagnostics including USB-C charging test (both ports), thermal performance, and system power draw analysis.