I have in my hand a self built proper Hana clone as I would call it. 1:1 copy. All that is needed is a cheap "dna 50" clone and a proper dna 40 chip. Rip out the poorly executed clone circuit board carefully as you wand to save the sled that it is attached to. Remove the hot glue from the buttons first by warming with a hot soldering iron and then carefully use the tip of the iron to melt the "other" hot glue. They used 2 types of glue around the sled l. When it cools it will not restick to the aluminum frame. Once most of it is removed carefully pry up the sled don't forget the two screws attaching it from the charger end. Be careful as you want to reuse the charger board. Clip all the wires from the board as close as possible. Once you have the sled out discard the clone chip and install the dna 40 in its place after attaching new wire to all the points with the same gage as the original. The screen will fit perfectly and do not remove the mounting rails from the chip. Lay the sled with the prepared DNA in the housing and screw it down the attach all the wires to the proper points. I reused the original 510 connector as it is not spring loaded and works better for ni200 builds. Replace the plexiglass board cover install a battery's and if every thing is proper you will have vapor instead of smoke. I didn't remove the DNA 40 onboard buttons. And a thin piece of card stock is used on both sides of the board between the housing and the chip because the edge of the board will short out on the housing. And if your buttons rattle a tiny piece of the card stock between the button and the sled will secure them. I used no glue anywhere and can be removed easy.