@yangchangshun110: PP1V8S4 storage channel overheating solved✅ Root cause:damaged capacitor short-circuited in the temporary storage circuit, leading to continuous high current and severe heating around storage chip. Removed the shorted component, cleaned pads thoroughly, device temperature back to normal after repair.#ChipLevelRepair #MobileMotherboard #SMDRepair #iphonefix #phonerepair