Living in the UK Channel Islands and new to having a drone this is probably a very basic question. As soon as I leave the island for holidays, due to cost of 'roaming' when in the UK or overseas, data roaming is turned off on my phone and I only use wifi in shops, hotels etc. Should if, for example wish to take the drone on holiday with me - would it still work without roaming and even no wifi. I imagine maps would not be loaded - and assume that GPS would still work. Any reply would be appreciated and thanks.