HCigar V75D white screen easy fix

got a hcigar V75d with intermittent white/blank screen while pushing fire button

Fonctions weren’t affected but still annoying

I found that white screen appeared when fire button wasn’t right centered in its position so i rolled a stripe of acrilic band (old dymo tapewriter band) around the button.

Button stays centered (without stucking on fire position) and i get nomore white screen (its been a month)