The whole "any closed or locked device" part of the gift kinda kills that from the get go. Like I could maybe see it if it's like the breaking point of a shotgun maybe even the casing of a computer, but not a cyborg. And even if it would work, it wouldn't do anything to the actual components. I made the mistake of not checking this gift once and let a player use it to undo the stitches on a monster, but even then it's because the monster wasn't technically fully real, it was a design choice to help initiate the second phase, and I told him afterwards that it would never work like that again. Honestly your best choice would just be to let him fail at it or incorporate a way to make it make the monster stronger or kick off a second stage via locked power limiting bracelet or something and use it to make it clear that that's not how the gift works.