K800 - K810
1202-3085 rev. 2
TROUBLESHOOTER
TROU
B
L
E
S
H
O
OTE
R
START
Load the
ITP Sw
into
the phone
Connect dummy
battery3,8V
2A current limit and
Chargers plug 5.3V
2A current limit.
Yes
No
Use fixture and
fault trace SW
Connect 3.8V
Connect charger
Plug 5.3 V and
then SEPI cabel
Yes
No
Use fault trace
SW. Run
Battery
calibrations
Passed
Use fault trace
SW. Run
Current
calibrations
Passed
Yes
No
Load SW from EMMA
Content refresh
Go to
Test Charging
Use fixture and
fault trace SW
Connect 3.8V
Connect charger
Plug 5.3 V and then
SEPI cabel
No
3.2 V and 4.1 V
at M
P 13 TP2220
when
battery calibrations
Is done
Yes
SL 5 Replace
R2200
SL 4 scrap
5,3 Volt at
MP 130
DCIO
Yes
No
SL5 Replace
V2204
SL 4 scrap
Using current.
V2204 getting
hot
Yes
Replace X2300
System connector
Start
current calibrations
Replace N2000
SL 5 Replace
R2201
SL 4 scrap
Replace V2202
Replace N2000
SL 5 Replace
V2203
SL 4 Scrap
SL 5 Replace
V2210
SL 4 scrap
Marita
D2000 faulty
Scrap
R2201
0.1 Ohm
No
Mp 128
DCIOint
Higher than
3,8 Volt
Mp 28
Higher than
3,8 Volt
Mp 126
CHREG
Pin 4 V2202
Lower than
MP 128
Yes
No
Mp 127
Pin 4 V2203
Lower than
MP 130
Pin 8 V2203
Yes
No
Yes
No
Yes
DCIO_ON
Pin 1 V2210
High
Yes
No
No
3.2 V and 4.1 V
at M
P 38 VBATI
when
battery calibations
Is done
Replace N2000
Yes
No
Using Current
when charger
calibration
Is done
No
Yes
Replace N2000
Replace X2200
SL 5 replace
V2200
SL 4 scrap
No
V2200
Short circuit
Yes
Charging problems
START
Phone with
Normal SW
Use fixture
Connect 3.8V
No
N2300 or D2304
Getting hot
Yes
Replace
V2201
Replace
D2304
5V at
MP 107
VBUS
5V at
MP 106
VBUS_1
Replace
V2220
Yes
N2300
Getting hot
No
Replace
System connector
Yes
Yes
4.7V at
MP 103
VBUS_VINC
No
Replace
N2000
Yes
No
Replace
N2300
No
Connect USB plug
From CPU
VBUS Charging problems
Trouble Shooting Guide Charging Problems - VBUS Charging Problems
SEMC Electrical Repair Manual
51
(121)
Summary of Contents for K800
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