W995
1230-1858 rev. 1
TROUBLESHOOTING
T
R
O
UBL
ESHOOT
ING
Dead Phone Problems
START
NOTE !
Before following this guide the
Dead Phone Problems part 1 TRS guide
must be finished
Is the
VAUDIO26
Voltage
Ok
No
Is the
VANA25
Voltage
Ok
Yes
Is any of
N2200 or N2010
getting hot
No
Yes
SL 5 Replace
N2000
SL 4 Escalate
No
Is the
VBT27
Voltage
Ok
Yes
Is
N1300
getting hot
No
Is
N3103 or N2422
getting hot
Replace
N3103 or N2422
Yes
No
SL 5 Replace
N2000
SL 4 Escalate
SL 4 Replace
N2200
SL 5 Replace
N2010
Yes
No
SL 5 Replace
N2000
SL 4 Escalate
Is the
VDIG
Voltage
Ok
Is any of
N2411 or N1300
getting hot
Yes
Yes
No
No
Yes
Go to
Dead Phone
Problems part 3
Is the
VBEAR26
Voltage
Ok
No
SL 5 Replace
N2000
SL 4 Escalate
Yes
SL 4 Replace
N2411
SL 5 Replace
N1300
SL 5 Replace
N1300
SL 4 Escalate
SL 5 Replace
N2000
SL 4 Escalate
Dead Phone Problems part 2
START
NOTE !
Before following this guide the
Dead Phone Problems part 2 TRS guide
must be finished
Is the
VCORE12
Voltage
Ok
1.1V – 1.2V DC
at MP 83
(V2201_Cathode)
3.8 Volt DC at
MP 44 (L2201)
No
Replace
L2201
No
Yes
No
Yes
1.1V – 1.2V DC at
MP 84 (C2219)
Replace
L2200
No
SL 5 Replace
N2000 or N2010
SL 4 Escalate
Is the
VCORE18
Voltage
Ok
No
SL 4 Replace
N2200
SL 5 Replace
N2010
No
Yes
Yes
Is the
ETS SW Flash
Successful
SL 5 Replace
N2020
SL 4 Escalate
Yes
No
Yes
SL 5 Replace
V2201 or N2000
SL 4 Escalate
Is
MP 9 (L2202)
Short circuit to
GND
Yes
SL 4 Replace
N2200
SL 5 Replace
N2010
Step 1:
Disconnect:
VBATT and DCIO/SEPI
Step 2:
Connect:
Slider Flex Assy and PBA Navi Key
to the PBA
Connect: VBATT
Only
Step 3:
Use EMMA SW
Press the ”C” key and Connect
USB Cable from the PC to the PBA
Flash the Phone with ETS SW
Go to Data
Communication
Problems TRS guide
Disconnect:
VBATT and DCIO/SEPI
Is
L2202 = Max 0.5 Ohm
SL 5 Replace
L2202
SL 4 Escalate
No
Yes
Dead Phone Problems part 3
SEMC Troubleshooting Manual
8
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