Customer Service DivaX Service Manual
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
