Blu C5 - Call Functions; Making and Receiving Calls

Start
Update latest software
version, check if the issue is
solved
No
Check if antenna and its
contact is damaged
YES
OVER
Replace Main PWB
YES
Change Antenna shrapnel
No
GPS/BT/Wi_Fi issue
No ringtone
Start
Update latest software
version, check if the issue is
solved
No
Check if Speaker Cover
is damaged
YES
OVER
Replace Main PWB
YES
Change speaker
Cover
No