Is it easy to install the battery? I hope instructions are included. I tried opening the box (4 screws) to have a look but the USB port and power knob and Eth ports perhaps need some trick or tools or force update: maybe it is not too hard to install, but rather hard to buy one… the ones I find for sale are priced by, say, 1000 pieces so maybe I should go hunt for one piece in a local chinatown any suggestions welcome, I live in Belgium, Antwerp.
