This seems to be a known problem when using 

##[\[ROM\]\[5.1.1\]\[SM-G360H/HU\] CyanogenMod 12.1 for Samsung Galaxy Core Prime][1]##

The original developer >>***doesntexits***<< already knew this and provided a flashable zip file which seems to fix problems related to bluetooth.  
[![Known Problem to the developer][2]][2]

**[This flashable zip file][3]** has to be downloaded and installed through the recovery.

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all this information can be obtained from the original post on XDA-Forums


  [1]: http://forum.xda-developers.com/galaxy-core-prime/development/rom-cyanogenmod-12-1-samsung-galaxy-t3405669
  [2]: https://i.sstatic.net/jeXPR.png
  [3]: https://drive.google.com/file/d/0BzWikRa31-8qNUNkSGlEOHlsOFE/view