i have bought a secondhand Sony Xperia Z1

[geenidee1994]

but as much as i know about the phone, the backpanel has been removed by an official technician.

my question is, is it still waterressistent, or not?

and if not, is it possible to get the phone water resistent again?

[_alexdon_]

If the back panel was correctly put back,the waterproof option should be intact.But,to be sure of that,stop by a sony service.