Blu Studio XL2 - Page 37

Doesn’t switch on
Start
YES
OVER
No
No
Check
the power
sequence
Check have
power or
Upgrade to latest
software
Test power-on
currency if
abnormal?
YES
If the currency
is higher than
normal, check
the hotter
components,
then replace it.
Yes
Check
power key
is ok?
No
OVER
Check the supply
power’s voltage
Yes
Replace U0601
No
Test X0501‘s
signal(32.768KHz)
Yes
Replace X0501
Test U1503‘s
26M signal
Yes
Replace U1503
Check
U0401soldering
Yes
Re-solder or
Replace U0401
Check U0901
soldering
No
No
Yes
Re-solder or
Replace U0901
Replace Main PCBA