Original charging port board Samsung Galaxy A55 SM-A556B (USB-C dock flex)

Has your Samsung Galaxy A55 (SM-A556B, 2024) stopped charging properly, does the USB-C connector wobble, or has the bottom microphone gone silent on calls? This original charging port board replaces the USB-C connector and the bottom microphone daughter-board flex in one go.

Specifications

• Compatible with Samsung Galaxy A55 (model code SM-A556B)
• Contents: charging port board with USB-C and bottom microphone
• Includes flex cable and mounting points
• Supports 25 W fast charging and USB 2.0 data
• Plug-and-play board-to-board connector
• Microphone mesh and O-ring for dust seal
• Replaces OEM flex GH82-33712A (reference)

Symptoms of a faulty part

• Phone does not charge or only under a specific angle
• USB-C plug feels loose or falls out
• Bottom microphone fails on calls or recordings
• Phone toggles between charging and not charging
• Moisture or short-circuit warning in the charging port

Installation

🟡 Medium · ±45 min · Required: hairdryer, plastic tools, suction cup, PH00 screwdriver. Warm the back cover, lift it off, disconnect the battery, unscrew the EMI shield, unplug the board-to-board flex and lift the old charging board out. Fit the new board, press the connector home, refasten the shield and reseal the device.

Frequently asked questions

Does fast charging still work after replacement?
Yes, this OEM board supports 25 W Super Fast Charging like the original; use a certified 25 W charger and USB-C cable.

Should I replace the bottom speaker at the same time?
No. The speaker sits on a separate module and is not included. The bottom microphone, however, is part of this board.

How do I know it's the port and not the cable?
Test first with a known-good cable and charger. If the plug still wobbles, the port board is most likely worn out.