Sorry, I must correct myself. She has the Gen3 Dual.
And yes, the the OP, sorry about hijacking.
And there lies the problem both versions of the gen 3 have a flimsy battery cover, with just a small plastic catch to hold it on relying on the battery connecting springs to keep the door shut, however in practice that don't work, the catches wear out, I'm very annoyed to be honest cause it wasn't cheap, I actually love the
mod but it's a design failure in my opinion