Recently I got a LG Optimus Black. It is having all the features that a best cell phone should have, but since last few days I am facing some problem with the ringer of my cell phone. It does not give proper ringing alert when any one calls me. Its ringtone sounds too slow, due to which I miss to receive most of the calls. I want you to suggest me some shops here in California, where I can get ringer for my cell phone. Is it possible to change the ringer of cell phone by our self as I don’t want it to be operated by any one?