Signal loss or muted earpiece: what to check?

The Samsung Galaxy S24 Antenna Module combines two functions in a single part: mobile network reception and the internal earpiece, the one that delivers sound to the ear during a call. A network that drops for no reason depending on location, a signal bar that suddenly disappears, or a voice that becomes inaudible on the phone all point to this module before looking for the fault elsewhere on the device.

As both functions share the same part, a fault in one sometimes comes with the other: an earpiece that crackles at the same time as an erratic antenna confirms the diagnosis rather than complicating it.

Samsung origin, Service Pack packaging

This part carries the manufacturer reference GH97-29474A. Its Quality line indicates Service Pack: this is a genuine manufacturer part, delivered in the packaging of the Samsung authorized repair network, and not a compatible or refurbished part. Nothing has been reassembled or recycled before shipping.

It is the box that distinguishes this packaging from an ordinary original part: the markings and referencing are those used by Samsung authorized centers for their own repairs.

What this antenna module includes

The module sold here integrates the internal earpiece directly onto the antenna flex, exactly as on the original Galaxy S24 (S921B) device. A single replacement therefore handles both functions in one operation, without having to order a second part for the earpiece.

Installing this antenna module: points of attention

Installation requires accessing the flex that connects the module to the motherboard, without forcing the connector or the flex itself, which is more fragile once the device has been reassembled. Suitable disassembly tools prevent micro-scratches on the chassis during the operation, and checking the network and earpiece before fully closing the phone allows the work to be verified before considering it complete.

This part is guaranteed for 2 years by the shop.