Hello mate I was using efest 3100 that come with it. I bought LG 3000 today waiting for them to fully charge then I'm going to try them. I have done a reflash with the newest firmware for some reason the hard reboot will not work. I've tried a number of different cables and wall charger I'm going to try the new battery's got my fingers crossed. Thanks for your help I will be lost without the help of you guys on here