Blu ARIA II, Service Manual

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Chapter 8 Trouble shooting guide
Can’t Download
NO
Replace or
re-solder the I/O
connector
Check power management and
LDO, whether have normal
voltage output or open circuit
Cannot download
Check if it is caused by the
PC, cable, tools etc.
Power on
NO
NO
NO
NO
YES
YES
YES
No
YES
OK
Replace or re-config.
Check I/O Connector
Connect the cable, check if
the current is normal (about
30 mA)
Disconnect the cable
and check if the chipset
is over heat.
Check VCORE
、
VDD
、
VADD
、
VTCXO
、
VRTC
、
VMEM
、
26MHZ
、
32KHcrystal
Replace U101 MT6260