Galaxy Z Fold 6 (F956) Antenna Cable, Mainboard to Charging Port

On the Galaxy Z Fold 6 (F956), an antenna connecting cable runs from the mainboard to the charging port assembly. If cellular signal weakened after the bottom of the phone was worked on, this cable is a prime suspect, because it sits right where that repair happens.

This aftermarket antenna connecting cable fits the Galaxy Z Fold 6 (F956).

Recognizing the fault

Customers report fewer bars than before, calls that drop in familiar places and mobile data that slows down. The cause is usually mechanical: a connector not fully pressed home, a cable kinked under a bracket, or ends loosened by a drop on the bottom edge. Liquid exposure can corrode the contacts too. Because the phone still has some signal, these faults are easy to miss in a quick post-repair test.

Reseat the connectors at both ends first. If the cable is kinked or torn, replace it and keep it clear of brackets on reassembly.

Compare reception with another phone on the same network before returning the Fold, so the fix is confirmed rather than assumed.