I recently got a t-mobile galaxy s2. After having it for a week, I rooted it and tried different roms. The last rom that I installed on it was an alpha version of cyanogenmod 9. Everything was working perfectly for a few days and then I started having problems.
The problems are with my wifi and bluetooth, they wouldn't turn on. When wifi did turn on, the phone slowed down and then turned off after a few mins. Thinking this was a cause of rooting, I decided to go back to stock. I wiped everything, formatted the internal sd card, cleared all caches and completely restored everything to stock using odin and the problem won't go away.
Now I'm running stock touchwiz gingerbread rom and when I turn on wifi, it just says "error". I was only able to get it going once and thats when the phone got extremely slow and turned off.
Also it seems like everytime the phone turns off from wifi, the battery looses like 7-10% and it gets really hot.
Here are my questions,
Is this a hardware problem?
I don't have warranty because I bought it from another person. Can I send it out for a warranty repair somehow?
Thanks in advance.