hi guys i have a hero which has been working fine for ages all i have done is unlock it and done the ota update. i went for a run the other day and it seems to have confused my phone. the screen works but on and off its as if it gets confused what it should be doing and trying to do lots of things. aguy in cpw said to flash it as its software related. now iveread for ages but am not sure what to do as i am not at all tech minded could someone walk me through the process pls??