Blu ARIA II - No;Low Sound from MIC

34
No
Yes
YES
NO
YES
NO
YES
NO
No/Low sound from MIC
No/Low sound from MIC
Install the MIC cover
Check if there’s
MIC cover
*#84666*# and activate echo
loop, measure MIC MK400
voltage is 1.5V、0.7V
Replace MIC
Replace R505 or R506
Check if inductor R505、
R506 is damaged.
Replace
C526/C527
Measure C526/C527 with
multimeter to see if there’s
0.5V offset voltage
Re-weld or replace
CPU U101 MT6260
END