38
Stand-by short time
YES
Connect the phone with Voltage
regulator, the current should be zero
Check if the idle current be
normal
(
0mA or little more
)
Replace RF IC
、
BT IC
Wifi IC FM IC
、
CPU
Stand-by short time
Power on the phone, check
the if working current be
normal
(
no exceed 600mA
)
Defective resolved
YES
YES
YES
Check and
replace
RF- PA,
AUDIO-PA,
PM IC
NO
NO
YES
Check if the components on the
PCB are damaged, capacitor,
power supplier, LDO, etc.
By touch to
find the
component
getting hot,
replace it.
Change battery
Re-flash SW
NO
NO
YES
YES
NO
NO
NO
NO
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...