C905
1222-9526 rev. 1
TROUBLESHOOTING
Trickle Charge LED Problems
TROU
B
L
E
S
H
O
OTIN
G
- Xenon Flash Problems
START
Step 1:
Replace Flash Complete
and retest the Phone
If successful claim
Flash Complete
If not go to step 2.
Step 2:
Load ITP SW into the Phone
Use Dummy Battery connected to the
Power Supply Channel 1 (VBATT)
Connect: DCIO/SEPI
Use Fault Trace SW
Fault Trace SW
MMI
Misc
Init Screen Testing
Led and Backlight
Activate:
Xenon Flash Test
No
Is the
Xenon Flash Test
Ok
Yes
Flash the Phone with
EMMA SUCR SW
Is the
Camera working
properly
Go to Camera
Problems TRS guide
No
Use TRS Fixture
Connect:
Flash Complete and Camera 8MP to the PBA
Connect: VBATT and DCIO/SEPI
Use Fault Trace SW
Fault Trace SW
MMI
Misc
Init Screen Testing
Led and Backlight
Activate:
Xenon Flash Test
Yes
Disconnect:
Flash Complete
1.8V – 2V DC
at MP 149 (R4304)
No
1.8 Volt DC
at MP 87 (R4303)
Replace
N2410
No
SL 5 Replace
N4300
SL 4 Escalate
Yes
Yes
Replace
X4400
Is the
Xenon Flash
Problem solved
SL 4 Replace
N2410
SL 5 Replace
N2010
No
Claim Component
X4400
Yes
Is
MP 133 (X4410)
connected to the PBA
GND
(Shield Can
Fence)
No
Replace
X4410
Yes
Xenon Flash Problems
START
Load ITP SW into the Phone
Use TRS Fixture
Connect: VBATT and DCIO/SEPI
Use Fault Trace SW
Continue with the
Trickle Charge LED Problems TRS guide
Fault Trace SW
MMI
Misc
Init Screen Testing
Led and Backlight
Activate:
Charge LED
No
Yes
1.8 Volt DC
at MP 118
(V4206_Anode)
SL 5 Replace
N2000
SL 4 Escalate
Replace
V4206
Trickle Charge LED Problems
SEMC Troubleshooting Manual
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