Poor reception can be a common issue with the LG G2.
Required tools include: Screwdriver, Socket wrench.
Remove the back panel to access the internal components.
Use your fingers to carefully lift all connectors.
Obtain a sheet of thin cardboard.
Cut the wire pieces to be approximately the same length as the connectors.
Position cardboard inserts underneath each of the three connectors.
Press down on the connectors gently.
Close the back panel.
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