Key Specifications & Identification
- Manufacturer: HiSilicon (Huawei)
- Component Type: Power Management IC (PMIC) / Voltage Regulator
- Primary Target Device: Found integrated inside the flagship Huawei Mate 40 Pro motherboard.
- Placement: It sits on the main logic board, typically paired closely with the Hi6D05 Power Amplifier module and the main Kirin processor.
Common Use Cases
This chip is sourced almost exclusively as a replacement part for component-level mobile repairs. Tech professionals swap it out when a device experiences power failures related to
- Complete failure to boot (dead phone)
- Secondary power delivery malfunctions (no display rail power, baseband power drops)
- Severe overheating localized to the upper motherboard area
Repair Requirements
Replacing this integrated circuit requires expert-level hardware repair skills:
- Micro-soldering tools: A hot air rework station and a microscope are required due to the microscopic BGA (Ball Grid Array) layout.
- Double-Layer Motherboard Complexity: The Mate 40 Pro utilizes a sandwiched, double-layered motherboard layout. Desoldering components on this board carries a high risk of separating the structural board layers if thermal control is inaccurate.
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