Update

[brammer90]

Hi after the latest update my Bluetooth won't stay connected to my device is there a way I can sort this or will I need to format my phone from scratch 

[xSteveuk]

Hi,
Try holding down the bluetooth icon from pull down pull up menu to scan and pair devices
Check the smart things app Devices

[JAMES4578]

Hu @brammer90  In addition to restarting and repairing it is someimes necessary to clear the Bluetooth's  Data cache.   Go to Settings-Apps- sort-Show System Apps.  Tap- Bluetooth- Storage.

See some more detail here https://www.samsung.com//support/ Bluetooth troubleshooting 

[brammer90]

Thanks guys I've tried a different Bluetooth device and I don't seem to have a problem so I'm guessing the problem is with the other device