High quality Signal Antenna Cable (Mainboard to Charging Port) Replacement for Samsung Galaxy S21 Plus (G996U) (North American Version).
This is the exactly Signal Antenna Cable for Samsung Galaxy S21 Plus.
If your phone has faults of on signal, or bad signal, it is most likely the Signal Antenna Cable have some problems.
It is used to replace your damaged or unusable Replacement Parts Signal Antenna Cable for Samsung Galaxy S21 Plus.
Ask for some technical skills and please be careful with your assembling process.