OPPO REALME C2/A1K CHARGING Board
High-quality replacement charging board designed for OPPO Realme C2 and A1K smartphones for reliable power and fast charging performance.
Durable USB charging port board that restores charging and data sync functionality to your Realme C2 / A1K device.
Precision-engineered charging flex board ideal for fixing charging issues, loose ports, or no-power problems.
Perfect replacement spare part to repair damaged or faulty charging ports in OPPO Realme C2 and A1K models.
Premium quality charging connector board ensures stable current flow and long-lasting performance.
Easy-to-install charging board designed for professional mobile repair technicians and DIY users.
High-performance charging PCB that supports safe charging and efficient data transfer.
Reliable mobile repair part to solve charging, connectivity, and power issues quickly.
Tested and quality-checked charging dock board for consistent performance and durability.
Cost-effective solution to bring your OPPO Realme C2 / A1K back to life with smooth charging support.
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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.
| Feature | Detailed Specification |
| Compatible Models | Realme C2 (RMX1941), Oppo A1k (CPH1923) |
| Component Type | Sub-PCB (Printed Circuit Board) / Charging Dock Assembly |
| Port Type | Micro-USB 2.0 (Standard 5-pin configuration) |
| Integrated Hardware | Charging Port, Primary Microphone, Antenna RF Terminal, Main Flex Connector |
| Main Functions | Power Charging, Data Transfer, Voice Calling, Network Signal Bridging |
| Build Quality | High-Grade PCB with Lead-Free Soldering |
| Voltage Input | 5V / 2A (Standard Fast Charging Support) |
| Signal Support | 2G, 3G, 4G LTE, VoLTE |
| Connection Method | Press-to-Fit (ZIF) for Main Ribbon + Coaxial Antenna Snap-on |
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.


