The Samsung Galaxy A10s (SM-A107) Charging Board, also known as the Sub-PCB or CC Board, is a critical component that acts as the communication and power gateway for the device. Unlike the standard A10, the A10s uses a specific layout that integrates the charging port, microphone, and antenna connections on a single replaceable module.
Below is a detailed technical breakdown in a tabular format.
| Feature | Detailed Specification |
| Compatible Model | Samsung Galaxy A10s (SM-A107F, SM-A107M, SM-A107G) |
| Part Name | Sub-PCB / Charging Port Flex Assembly / CC Patta |
| Connector Interface | Micro-USB 2.0 (5-pin high-durability port) |
| On-Board Hardware | Charging Port, Analog Microphone, Antenna Terminal, Audio IC path |
| Main Functions | Battery Charging, Data Sync (PC/Mac), Primary Voice Mic, Network Reception |
| Charging Support | Standard 5V/2A (10W) power intake |
| PCB Material | FR-4 grade fiberglass with gold-plated contact points |
| Connection Method | Main-Flex Connector (BTB) + RF Coaxial Cable Snap |
| Audio Input | Integrated high-sensitivity microphone for GSM/VoLTE calls |
1. Micro-USB 2.0 Port
The board features a precision-soldered Micro-USB port. High-quality versions include reinforced solder joints at the anchor points to prevent the port from breaking away from the PCB due to the stress of daily cable insertion.
2. Primary Voice Microphone
This module houses the phone's primary microphone.
3. RF Signal Hub
The golden circular terminal on the board is the Antenna RF Connector. A damaged or low-quality board often results in a "No Service" or "Emergency Calls Only"
No Charging: The device does not respond to any charger or cable.
Slow Charging: The phone takes 6+ hours to charge or shows a "slow charging" notification.
Mic Failure: Callers report they can't hear you unless you use headphones or speakerphone.
Network Issues: Weak signal bars or intermittent 4G/LTE connectivity.
Loose Port: The cable feels loose or falls out easily, or only charges at a specific angle.


