Share your experience!
Hello
Two years ago I bought 3 xperia z2 and 1 xperia z1 compact. Two months ago ended warranty. This phones always have warmed. Now one of the Xperia z2 ha a pot belly and has taken off her back. I´m afraid to use it.
Regards
P.D. Sorry for my english
Follow the advice given in this thread.......and contact your local Support
Hi @KeaneNg,
I am very sorry to hear that. 
My recommendation is to get in touch with your Local support as I mentioned earlier in this thread, they can assist you in having it sent in to an authorized service center.