OPPO REALME C2/A1K CHARGING Board

The Oppo Realme C2 / Oppo A1k Charging Board (Sub-PCB) is the primary interface for power intake, data communication, and audio input. Since these two models share the same internal architecture for the lower module, this part is cross-compatible, making it a versatile component for repair technicians.

Below is the exhaustive technical product description and specification breakdown in a tabular format.

Product Overview: Realme C2 / Oppo A1k Charging Board

Critical Component Breakdown

1. Precision Micro-USB Port

The board features a high-tensile Micro-USB port with 5 primary pins for VBUS, Data+, Data-, ID, and Ground. The housing is reinforced with multiple solder points to prevent the port from "lifting" or breaking off during repetitive cable insertions.

2. Digital Microphone (Primary)

The high-sensitivity microphone is pre-soldered onto the board. It is responsible for picking up your voice during regular GSM calls and recording audio. It includes a protective rubber gasket (in OEM versions) to prevent sound leakage and ambient noise interference.

3. RF Signal Path

At the edge of the board lies the Coaxial Antenna Connector. This tiny gold-plated terminal connects the phone's internal antenna wire to the mainboard. A high-quality charging board ensures zero "decibel loss," maintaining strong 4G/LTE bars.