Hello, I'm using four jDrones AC30-1.0 ESC on my quad and I'm often having problems with some ESC that won't arm when I connect the LiPo battery. One odd thing I noticed is that most of the time, they will arm without any problem when I'm at home, but on the field, I have a lot of trouble to get the four of them armed and sometimes I'm even not being able to fly! That's very frustrating... It s…