Can't show the insides of mine, but yes, You can "rewire" the buttons.
Best way is to wire them diagonally ( / )
Pick a corner, any corner of the button area (works best if you heat the tabs and remove the buttons 1st), and solder a wire on to it, then, solder a wire onto the diagonally opposite corner (no straight across, no straight up or straight down)
My test "BAMO" (Boxed VAMO mod) has been working great for over a week, from what I thought was a dead VAMO. Turns out only the main button was worn out.
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1st try after replacing the main button and wiring it to a 16mm switch
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Main switch, display on the side and a charging system (works great!)
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- and + buttons ( I got them backwards.. - on top instead of on the bottom) using tactile switches covered with some silicon
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ego/510 connection
(I have Chi you tops, covered tac switches, Hammond boxes and an illuninatied 16mm switch coming in for the final version, as well as new VAMO pcb's)