Micromax A27 - No Ring Tone Fix

9
3.2 No ring tone
Yes
Check soldering of
speaker.OK?
No ringtone
Replace speaker and
test
No
Check the speaker circuit
no short ciruit or open
circuit
Replace new
mainboard
Solder
speaker
Yes
No
OK! Mark the
failed speaker
Yes
Mark the
mainboard with
analysis result
OK
No