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Power On/Off Problems
START
Is the phone
consuming more than
Use the
1mA when the phone
Dummy Battery Connected to
is powered off
Power Supply Channel 1
(VBATT)
No
Is it possible to
No
power on the phone
Is the
phone consuming
any current when
No
Connect a charger
powering on the
phone
Yes
Is the current
consumption between
No
10mA to 70mA
Flash
the phone with
Yes
correct CDA
software
Yes
Flash
CDA Software
the phone with
Flash
correct CDA
Successful
software
Yes
1. Customize the phone into DPY/Z
Flash
2. Startup the phone and wait for
The phone with
the configuration to take place
the ETS software.
Yes
(takes less than a minute)
Is the ETS SW Flash
3. Customize with correct CDA
Successful
4. Activate the phone
No
Go to
Data Communication
Is the Problem
No
Problems
solved
TRS guide
TROUBLESHOOTING
Go to
Dead phone
Yes
Problems part 1
TRS guide
Go to
Current
Is it possible to power
Yes
Yes
Consumption Test
off the phone
After this go to
Charging Test
No
Is the phones
Go to
behavior as normal
Yes
On-Off Key Problems
Optimized
TRS guide
charging
No
Go to
Dead Phone
Problems part 1
TRS guide
Go to
Press "C"
System Connector
Connect USB from PC.
Protection Test
Update SEMC BOOT if
No
necessary. Run EMMA
After this go to
SUCR SW. Is Phone
Data Communication
Flash Ok
Problems TRS guide
No
Is the
No
Flash process
started
Yes
Is the Problem
No
solved
Yes
Claim for a
Yes
SW Upgrade
Power On/Off Problems - USB and Software Flash Problems
USB and Software Flash Problems
START
Step 1:
Perform
Is the
System Connector Protection Test
Flash process
If successful go to step 2.
Start-up when using
EMMA SW
Step 2:
Download ITP SW into the Phone
No
Use TRS Fixture
1:
Connect: VBATT and DCIO/SEPI
2:
Remove: DCIO/SEPI
3:
Connect: USB Cable from the PC
Does
Go to
the Phone
USB/VBUS
No
Indicate charging
Charging Problems
on the display
SL 4 Replace
N2420
5 Volt DC at
No
SL 5 Replace
MP 75 (C2433)
R2442
Yes
2.7V – 3.3V DC
at MP 68 (C2437) and
1.8V DC at MP 76
(C2435)
Yes
Remove the PBA from the
TRS Fixture
Max
2 Ohm between
MP 14 (X2405_Pin 10)
and MP 65 (Z2400_Pin 2)
Yes
Max
SL 4 Replace
2 Ohm between
N2420
MP 15 (X2405_Pin 11)
Yes
SL 5 Replace
and MP 66
N2010
(Z2400_Pin 3)
SEMC Troubleshooting Manual
Yes
Is the
SL 5 Replace
No
ITP SW Flash
Yes
N2020
Successful
SL 4 Escalate
Is MP 14
Replace
(X2405_Pin 10)
Yes
Yes
Short circuit to
V2421
GND
No
Is MP 15
Replace
(X2405_Pin 11)
No
Yes
Short circuit to
V2420
GND
SL 4 Replace
N2420
No
SL 5 Replace
N2010
Max
0.5 Ohm between
Replace
No
No
MP 14 (X2405_Pin 10)
X2405
and MP Z2400_Pin 1)
Replace
Yes
Z2400
Max
0.5 Ohm between
MP 15 (X2405_Pin 11)
Replace
No
No
and MP 64
X2405
(Z2400_Pin 4)
Replace
Yes
Z2400
1228-1147 rev. 1
C903
8
(129)
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Table of Contents
Troubleshooting
