Blu Aria - Power On Issues Troubleshooting

21
Cannot power on-current swing instability
YES
NO
NO
YES
YES
NO
YES
NO
NO
NO
NO
26MHZ Check and
replace system
clock：26MHz
Make the phone connect the power
supply and find the current swing at
50-100mA
END
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 U101
MT6250
Upgrade the
software
Check and
replace the I/O
connector
Replace or reweld
flash
Replace or
reweld CPU