[Q] Replacing default dialer on rooted Blue Studio C 5+5

So im still having the Bluetooth issue with my phone (Blu Studio C 5+5 running android 5.0). So i was able to root it this morning with kingroot. Checked with root checker, everything check out that its been rooted successfully. So i thought to get my Bluetooth to work right i would start from the bottom and work my way up. I don't really like the default dialer app so i figured i replace that with a new one and see how he headset acts with it. If i go into app settings the disable button is grayed out and if i try to uninstall it with kingroot it seas successful but its still there. I downloaded a app called "True Phone Dialer & Contacts" that gives the option to replace original and set it at default with root access but it gets to 13% and stops when i try and active the setting. Any help or thoughts on these issues would be much appreciated

Thread on original problem:
http://ift.tt/2ciAeT6

from xda-developers http://ift.tt/2cadnMc
via IFTTT