Hi,
LG G3 is not yet supported for jabber Andoird. Here is the latest document with supported phone models.
http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/jabber/Android/JABA_BK_CBE2E09B_00_cisco-jabber-for-android-1052.html#CJAB_RF_D3CF90B1_00
Regards