Charging port flex with sim reader and microphone by Samsung Galaxy A57 5G premium quality

Charging port flex with SIM reader and microphone for Samsung Galaxy A57 5G (SM-A576B) premium quality

Lower sub-board module with charging port, SIM reader and integrated microphone for Samsung Galaxy A57 5G (SM-A576B), designed to restore critical functions when the device experiences charging failures, intermittent disconnections, SIM card reading errors or voice capture issues during calls. This assembly integrates the USB connector, SIM socket and primary microphone on a flexible board, ensuring stable electrical continuity and proper communication with the motherboard. Specifically compatible with technical model SM-A576B, it follows the original internal layout, mounting points and chassis positioning. A workshop-oriented solution for precise replacement of the lower module in Galaxy A57 5G repairs.

Key features

• Lower sub-board with integrated charging port
• Built-in SIM reader
• Integrated main microphone
• Compatible with Samsung Galaxy A57 5G model SM-A576B
• Direct-fit FPC connectors

Advantages and quality

Premium quality provides conductive traces and contacts designed for stable power delivery, reliable mobile network detection and clear audio capture. The module restores consistent charging, data synchronization and accurate SIM recognition without signal loss. Manufactured with tolerances compatible with the original design, it allows precise installation without structural modifications. Ideal when failure affects the USB connector, SIM reader or lower microphone simultaneously. Designed to reduce repair time and minimize post-repair issues in professional servicing.

Installation tips

1. Power off the device before starting disassembly.

2. Disconnect the battery before handling the lower sub-board.

3. Remove screws and protective shields using proper tools.

4. Disconnect the interconnection flex carefully without forcing FPC connectors.

5. Install the new board ensuring proper alignment of port and SIM reader.

6. Test charging, SIM detection and audio quality before final assembly.

Technical table

Brand | Compatible models | Technical model | Part number | Component type | Dimensions | Capacity/Voltage | Quality
Samsung | Galaxy A57 5G | SM-A576B | — | Charging port board + SIM reader + microphone | According to original design | — | Premium