Is there an update for the phone or the Bluetooth software for the phone. I think it's a problem with the BLE on the phone.

First off I have the BV9100 phone I bought it because I has the Ulefone power 5 which this is the brother/sister of that unit. I loved it. I have a Samsung S3 Frontier Smart watch. I have used it on 4 phone in the past. But with the 9100 It disconnects every few hours. I have changed the battery opt...