Hi
I m puracharging a blackview bv5000 in last month I like to setup my dual sim in diferent ringtone and notification but after my ota update to android 5.1 build number bv5000_c1_blackview_v1.2_201606608 its impossible to set a diferent ringtone to distinguish every call
can you please help me to resolve this issue its verry important for me
Thanks in advance