Iphone switching off on its own and vibrates loudly if someone calls

[surina]

Hello,

I have an iPhone 4, got it last year in Feb. Since last few days, it's been switching off few times. I have to press the menu button and turn off/on button together to turn it back on. Two times it also happened that the phone starting vibrating loudly, screen was black as if the phone was turned off, I couldn't do anything with phone, screen wouldn't show up and after the vibrations stopped (probably when the recieving call stopped) I had to use menu+turn on/off switch to turn it back on. My warranty expired on 12feb2012. Please help me how can I solve these two problems.

Thanks

Surina

 

[maka]

That sucks that you just missed your warrenty. But try to restore the phone from scratch... Might be a battery issue.

Best bet is to sell it as is, the iphones in that condition is still roughly going for about 200. You can get a nice good working one on craigslist for 250-300

 

[rdub]

Weird, mine did the exact same thing today jailbroken 5.0.1