Tested replacement built for repair benches. This OEM motherboard flex cable is made for the Samsung Galaxy S25 FE, model number SM-S731B, and it connects the main board to the rest of the phone’s internal circuitry.
What You’re Getting
You receive one new motherboard flex cable. Each unit is checked for good condition before dispatch, so you know it arrives ready to use. The supplier confirms the part is designed to fit and function as a direct replacement for the original.
Why This Part Works
A failing flex cable can cause dead sections, flickering, or a phone that won’t power on properly. Swapping in a fresh cable often brings the device back to full working order. Because it’s an OEM-grade part, it matches the original layout and connectors closely, which keeps the repair clean.
Installation Notes
Professional installation is the safest route for this part. Before you start, power the phone down and confirm the model is SM-S731B. Wear an ESD strap to protect the board from static discharge. Keep the flex cable from bending past 90 degrees, since sharp folds can crack the traces. Work slowly around the connectors and take photos as you go so you can reverse each step.







