Guys i have a problem with my sgs2 white G version. Bought a month ago.

1) When i browse the internet sometimes it just freeze, need to wait around a minute before the phone can response.
2) Camera hang, there was one time it hanged i just left it in my bag for 20 minutes, took it out, the phone was extremely hot.
3) The buttons are not very responsive especially the back button.

I did a factory reset already a couple of times, and took out the memory card. But the same problem still happens.

What should i do? send to claim warranty?

Nope nothing. I deleted everything.