Why Your Samsung S21 5G Loses Signal
A damaged antenna connecting cable can cause dropped calls, slow 5G, and weak Wi-Fi. This internal part is fragile and may wear out over time.
Symptoms of a Faulty Antenna:
- Inconsistent 5G/LTE signal
- Bluetooth disconnections
- Slow Wi-Fi speeds
- GPS inaccuracies
How to Replace the Antenna Cable
- Power off your Samsung S21 5G.
- Remove the back glass carefully (heat gun recommended).
- Disconnect the battery before handling internal parts.
- Locate the antenna cable inside the frame.
- Swap the damaged cable with the new one.
- Reassemble & test signal strength.
Why Use a Genuine Replacement?
Cheap knockoffs may cause signal interference. This OEM-grade antenna connecting cable ensures stable performance.
