27
Phone dead
Upgrade the software can
settle the defect issue?
Check and reinstall the keypad
or replace the touch panel.
Check battery connector
and battery touch point if
is dropped or dirty?
Check the keypad if stuck or
touch panel do not work to
make the phone “dead”?
Check the CPU if is rosin
joint or damage?
Check the flash if is
rosin joint or damage?
END
Clean or replace the battery
or battery connector.
Reweld or replace U501.
U101 Reweld or replace U101.
Upgrade the
Software.
YES
NO
YES
NO
YES
NO
NO
YES
YES
Summary of Contents for LIFE ONE M
Page 1: ...1 BLU Life One Service Manual...
Page 15: ...15 Side A layout Side B layout...
Page 16: ...16 CHAPTER 6 CIRCUIT INSTRUCTION CHAPTER 7 UNIT CIRCUIT PRINCIPLE INTRODUCTION...
Page 19: ...19 Data transmission mailing address...
Page 23: ...23 SKY7775XX POWER AMPLIFIER MODULE FOR CDMA WCDMA HSDPA HSUPA HSPA LTE DAND...