Has anyone ever sent their xz to repair or replace the back cover after it pops up slightly possibly due to the phone's internal heat? I bought my xz on launch day. Recently notices the top of the back cover was slightly popped up. I pushed it back in and a month later noticed it popped up back a little. I believe this is claim able under warranty. Anyone here had a similar issue? Worried my phone not water resistant now.

Why zl screen is more yellowish than Z?

its known as "mediaserver".

i have disabled google now few days ago, its not that issue i believe.
i m removing all my music and videos for now to check the problem

The paint is only in micro thickness. Not only Sony, even Samsung also if you use hard cover especially in the shinny area. If use TPU at least can stay a bit longer. My wife SIII, at least about a year. I already told her to take care her ZL as well.

One more thing, if you have babies, keep away from baby saliva.

im using that right now.. (the sound)..
but im rooted lah so i can easily replace.

even on AOSP i used the sony's sound.. more original
been keeping it on my SD card ever since