W995
1230-1858 rev. 1
TROUBLESHOOTING
Power On/Off Problems
T
R
O
UBL
ESHOOT
ING
- Dead Phone Problems
1. Customize the phone into DPY/Z
2. Startup the phone and wait for
the configuration to take place
(takes less than a minute)
3. Customize with correct CDA
4. Activate the phone
No
No
START
Use the
Dummy Battery Connected to
Power Supply Channel 1
(VBATT)
Go to
Dead phone
Problems part 1
TRS guide
Yes
No
No
Connect a charger
No
Yes
Go to
On-Off Key Problems
TRS guide
Yes
Go to
Dead Phone
Problems part 1
TRS guide
Yes
Yes
Go to
System Connector
Protection Test
after this go to
Data Communication
Problems TRS guide
Yes
Yes
No
Yes
No
Is the phone
consuming more than
1mA when the phone
is powered off
Is it possible to
power on the phone
Is the
phone consuming
any current when
powering on the
phone
Is the Problem
solved
Is the phones
behavior as normal
Optimized
charging
Is the
Flash process
started
Load ETS SW
into the Phone
Is the ETS SW Flash
Successful
Is the Problem
solved
Is it possible to power
off the phone
Yes
Go to
Current
Consumption Test
after this go to
Charging Test
Yes
No
Claim for a
SW Upgrade
Yes
No
No
Go to
Data Communication
Problems TRS guide
No
No
Is the current
consumption between
10mA to 70mA
CDA Software
Flash
Successful
Flash
the phone with
correct CDA
software
Yes
Flash
the phone with the
correct CDA
software
Press ”C”
Connect USB from PC.
Update SEMC BOOT if
necessary. Run EMMA
SUCR SW. Is Phone
Flash Ok
Power On/Off Problems
START
Note!
Before following this guide check if
C4203 is Short Circuit. If Yes Replace
C4203. If not go to step 1.
Step 1:
Try to recover the Phone by using
EMMA SW
Press keys 2 and 5
Connect USB Cable to the Phone
and update SEMCBOOT after this
Run EMMA SUCR SW
and retest the Phone
If successful claim SW Flash
If not continue with Step 2.
Step 2:
Use TRS Fixture
Connect: VBATT
Only
Is the
current consumption
more than 1mA
Try to trace
Faulty Component
by using Freezing Spray
Is
N2420 or N1200
getting hot
Replace
N2420 or N1200
Yes
No
No
Yes
Connect:
DCIO/SEPI to the Phone
Is X2201
Damaged
Yes
Replace
X2201
No
SL 5 Remove
N2000
SL 4 Escalate
32 kHz
at MP C2101
SL 4 Replace
B2100
SL 5 Replace
N2000 or N2010
No
32 kHz
RTCCLK at
MP 80 (R2103)
Yes
No
26 MHz
MCLK at
MP 1 (L2106)
Yes
Yes
1.8V DC at
MP 21 (R2243 VDDE18)
and 2.8V DC at MP 24
(C1218 LDOA_OUT)
No
No
Yes
Check the following
Voltages:
2.6V MP 41 (R3119 VAUDIO26)
2.5V MP 23 (C2208 VANA25)
2.7V MP 25 (C2210 VBT27)
2.7V MP 26 (C2211 VDIG)
2.6V MP 27 (C2212 VBEAR26)
1.2V MP 84 (C2219 VCORE12)
1.8V MP 9 (L2202 VCORE18)
2.8V DC
at MP 20 (C1207)
SL 4 Replace
N1200
SL 5 Replace
N1300
Yes
Replace
N1211
No
Are
all Voltages
Ok
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 the ETS SW
Yes
Is the
ETS SW Flash
Successful
SL 5 Replace
N2020
SL 4 Escalate
Yes
Go to Data
Communication
Problems TRS guide
No
No
Go to
Dead Phone
Problems part 2
SL 5 Replace
N2000
SL 4 Escalate
SL 4 Replace
N2420
SL 5 Replace
N2000
Is the
current consumption
still more than
1mA
Try to trace Faulty
Component by using
Freezing Spray
Yes
SL 5 Replace
N2000
SL 4 Escalate
No
1.8V DC
at MP 76 (R2115)
No
SL 5 Replace
N2010
SL Escalate
Yes
Dead Phone Problems part 1
SEMC Troubleshooting Manual
7
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