After I upgraded my iPhone 4S to 6.1.3 Bluetooth pairing has completely stopped I tried my merc and my Bose Bluetooth device
Reset the iPhone
What happens to my data if I reset my phone
Nothing it is similar to rebooting a PC
A restore will affect your data ,which should be backed up if it is of any value
How do I take backup of all my data and process to restore it back.
User guide which will answer all your questions
Retrieving data ...