Blu ARIA II, Service Manual

Page: 24 / 50

24
Cannot power on-low or no current
YES
YES
YES
NO
Clean
，
reweld or
replace it
END
Upgrade the software
Check and
replace I/O
connector
Replace or reweld
flash
26MHZ
Check and replace
system clock
：
26MHz
Check the power manage
supply output
：
VCCRE 1.8V
VDD 2.8V
AVDD 2.8V
VTCXO 2.8V
VMEM 2.8V
VRTC 1.2V
Replace or
reweld
CPU
Replace U101
MT6260
Make the phone connect the
power supply and find low or no
current
Check the battery
connector and power
key
NO
NO
YES
YES
NO
NO
NO
YES
NO
NO