Phone Crash - Lenovo A536 Service Manual

3.7 Phone crash

Connecting
computer through USB line,
check whether some new device
was found in the computer.
Check the 32.768KHz crystal
is normal?
Check PMIC provide power
supply to CPU and EMMC
are normal?
Replace the memory U501,
whether
working normal.
Change CPU chip
Phone crash
the phone and
N
Y
Y
the phone
N
Y
Download software
N
Heat the crystal
then try it again.
Heat the PMIC
N
or change the
PMIC.
Y
is
OK
20