You now removed the daughterboard which has the charging port on it, this guide should work on every LG G2 variants except Korean LG G2 variants which is much similar to the LG G3.

This procedure is also required for the simplest repairs like battery replacements or screen replacements or motherboard repairs.

Just to simplify things up i decided to go up with this guide as removing the sub board isn't easy as there are some adhesives holding up but things can be done easier and successful with patience and care