Tested replacement built for repair benches. This SIM card reader board includes the microphone, so one swap can fix both a SIM that won’t register and a mic that has gone quiet on calls.
What You’re Getting
You receive a SIM card reader board with the mic already attached. Each board is checked for good condition before it leaves our warehouse, so you start with a unit that is ready to fit rather than one you need to test first.
It is listed as the EU version of the Samsung SM-S937B. That matters if you are sourcing parts for a handset from this region, since model variants can differ in their internal layout.
Compatibility
This board is made for the Galaxy S25 Edge SM-S937B. Check your model number under Settings before ordering, because a board for a different variant may not seat or connect properly.
Installation Notes
Power the phone off and disconnect the battery before you start. Wear an ESD strap to protect the board and the phone’s internal chips from static damage. Lift flex cables gently and never bend them past 90 degrees, or the connector may crack. Test the SIM slot and microphone once the phone is reassembled and before you close the back cover.
Professional installation is highly recommended, especially if you have not opened a flagship before. Any damage caused while swapping parts remains the installer’s responsibility.
