What is this flex cable for?

The Power + Volume flex cable connects the physical power and volume buttons to the motherboard of the Samsung Galaxy S26 Ultra. This flexible circuit carries the electrical contacts of the three side buttons and connects them to the rest of the device via a solder joint on the motherboard.

It is neither the screen nor the battery that is at fault when this part fails, but rather this mechanical and electrical link between the housing and the motherboard: a worn or cracked contact is enough to render the buttons unresponsive.

When to replace this flex cable?

A power button that no longer responds, a screen that cannot be turned on or off by side pressure, volume buttons that no longer react or react randomly: these symptoms generally point to this flex cable, rather than a software issue.

A drop on the edge or repeated pressure on the housing can crack the internal contact without leaving any visible trace on the outside of the phone.

A genuine Samsung part

This flex cable is a genuine manufacturer part, supplied as a Service Pack: it comes new from the official Samsung circuit, in its repair packaging, without any intervention or repair having been carried out on it.

The package bears the manufacturer reference GH59-15953A, the one a repairer finds on the original removed part and which allows the order to be confirmed before purchase.

Compatible with which Galaxy S26 Ultra?

This flex cable is designed for the Samsung Galaxy S26 Ultra, and for this model only: the shape of the connector and the length of the circuit follow the layout specific to this housing, with no possible adaptation to another model.

Installation and warranty

Replacing this flex cable requires opening the phone and accessing the motherboard: an operation reserved for an equipped repairer, with the screen and housing needing to be disassembled with care so as not to damage neighboring flex cables or adjacent connectors.

The part is covered by a 2-year warranty granted by the shop.