profile.country.LT.title
@Loselwrote:My Xperia c5 ultra dual, having problem connecting with my sbh52 call audio Bluetooth , I have tried resetting the phone yet all the same, is annoying and waste of money buying this Xperia problems
About SBH52 you can find here - https://support.sonymobile.com/global-en/sbh52/userguide/multipoint-functionality/#gref, https://support.sonymobile.com/ie/sbh52/userguide/resetting/#gref
@big_jekawrote:Hello!
That is problem:
In my old phone T2 Ultra Dual my smart gadgets (SWR 10, Smartwatch 2 and SBH50) works perfectly together. But they didnt work simultaneously on C5 Ultra Dual. Works only headset and smart watch, or headset and smart band, but they didnt work together. Bluetooth divices contyniosly disconnects and reconects. Thats very annoing thing. Please solve this problem.
Thank you.
About similar problem was posted already - /t5/Xperia-C5-Ultra/C5-ULTRA-DUAL-bluetooth-disconnections/td-p/1099246#gref As i thought too it can be different Bluetooth supported protocols. If i'm not wrong some of yours device have 3.0, when Xperia C5 Ultra running 4.1 
I did not checked all specifications of all devices, but i have Xperia C5 Ultra Dual with Marshmallow more as 2 years and I did not noticed this problem, but my devices with which is paired my smartphone is much more newest as yours, so as YoGem in linked thread mentioned it is can be problem with Bluetooth different versions
0online
1869066posts