I m facing following issues after october update:Hanging restart problemI can't receive and make call Sound problem I can't play videos The phone speaker and microphone are not working...  Plzzzzz help as soon as possible....Plzzz I request u plzzz h...

The phone's performance has become horrible. The speaker's not working, phone gets restarted often and lag delay has increased a lot. This is causing a serious inconvenience. I urge Samsung to rectify this issue at the earliest without having to face...