This will work for most Linux Mint kernels
sudo apt-get git build-essential linux-headers-genericgit clone https://github.com/lwfinger/rtlwifi_new.gitcd rtlwifi_newmakesudo make installcd ~git clone -b troy https://github.com/lwfinger/rtl8723au_bt.gitcd rtl8723au_bt-troymakesudo make installReboot