My mobile doesn't receive the network signals after entering to the coverage area. I have to restart the mobile or enable and disable the flight mode in order to get the signals... why my mobile doesn't get the signals automatically?

How can I select the memory card for the default storage for the photos and videos?

Please update the software in order to use the front flash light for the notification... would appreciate if light blink in the less power.

I have read all the messages but message icon shows that I have unread item.please help me how to delete this.

I have read all the messages but message icon shows that I have unread item.please help me how to delete this.