Power Flex Cable designed for the Samsung Galaxy S24 (reference S921B), it connects the power button and the volume button to the motherboard. It replaces a flex cable damaged during a disassembly, or a button that has become stuck or unresponsive to touch. This is a refurbished original part: it comes from a manufacturer device, disassembled then checked before being put back into stock, and not a copy made by a third party. This origin guarantees a connection and responsiveness identical to the original flex cable, with no play or loose contact on the physical buttons. It is covered by a 2-year warranty, a useful benchmark whether for a workshop repair or a one-off replacement at home.

What the Power flex cable on the Galaxy S24 connects

The Power flex cable for the Samsung Galaxy S24 (reference S921B) connects the power button and the volume button to the motherboard. Every press on these two physical buttons passes through it: without it, no standby mode, no volume adjustment.

It is replaced when the power button becomes unresponsive, responds erratically, or when the flex cable has torn during a previous disassembly of the device. The symptom is often mistaken for a motherboard failure, when the fault is actually limited to this connection.

Where does this refurbished flex cable come from?

The quality standard on this listing is clear: this is a refurbished original part. The flex cable comes from an authentic Samsung device, removed then checked before being put back into stock. It is not a copy made by a third party.

This check before restocking rules out flex cables whose contact point is already worn or whose connector has suffered during a previous disassembly: the risk of receiving a part that reproduces the original fault is ruled out upstream.

A fragile flex cable, to be handled with care

This flex cable is thin and short: it gets caught or tears easily during chassis disassembly, which explains why it is among the parts most often replaced after work on the power button or the volume button.

During installation, avoid bending its connection point and check that it is properly clipped in before closing the device: a poorly clipped connector reproduces exactly the symptoms that led to the replacement.

Two years to work with confidence

This flex cable is covered by a 2-year warranty, a period that leaves time to validate the repair, whether the work is carried out in a workshop or at home.