Vibrator Fail - Blu Dash 4.5 Service Manual

3.7 Vibrator fail

Motor doesn't work
Supply 3.3V for motor,
test motor can work or
not
Y
Check related R, C OK
or NOT, Check D1401
reverses or not
Y
Hot U2 or Change a
new one
N
Change a
new Motor
N
Change uncorrected
component
OK