back flap

[ym2nga]

the back cover of my Xperia z1 is loose, does this means that it's waterproofing is gone or is it still waterproof?

[Alexander1]

Hi and welcome to the community! Since you're new please be sure that you have checked out our Discussion guidelines.

Sorry to hear about your phone. I suggest that you have your phone examined and fixed by a service center. Please contact your local Xperia support team for more information:

http://www.sonymobile.com/global-en/support/contact-us/

[VegeCai]

Water will leak into the phone in this situation.

If your phone is in warranty, sent it to Sony customer service for repairing.

Or you can get an original back cover adhesive sticker to seal the back cover.