When this iPad Pro 11-inch 3rd Gen (A2377) arrived at AppleFix NZ, it had already been through one repair — the charging port had been replaced, but the iPad still refused to charge. During inspection, we found a capacitor near the charging circuit had been damaged in the earlier repair. We replaced it, but the fault remained. Detailed motherboard diagnostics eventually revealed the real cause: a faulty CD3217B12 USB-C power delivery controller. Using component-level microsoldering, we replaced the chip and restored normal charging. Here’s the full diagnosis and repair, step by step.