Dead or jammed device troubleshooting...............................................................................................................................1–6
General power checking troubleshooting...............................................................................................................................1–7
Battery current measuring fault troubleshooting.............................................................................................................1–12
CMT NOR flash fault troubleshooting......................................................................................................................................1–17
Power key troubleshooting.......................................................................................................................................................1–20
USB interface troubleshooting.................................................................................................................................................1–21
FM radio troubleshooting..........................................................................................................................................................1–29
Certificate restoring for BB5.0 products................................................................................................................................1–29
General instructions for display troubleshooting........................................................................................................1–35
Display and keyboard backlight troubleshooting........................................................................................................1–38
ALS troubleshooting...............................................................................................................................................................1–39
LED driver troubleshooting..................................................................................................................................................1–41
Bluetooth troubleshooting........................................................................................................................................................1–42
Introduction to Bluetooth troubleshooting...................................................................................................................1–42
Bluetooth settings for Phoenix..........................................................................................................................................1–44
Bluetooth self tests in Phoenix...........................................................................................................................................1–44
Bluetooth troubleshooting..................................................................................................................................................1–46
Bluetooth BER failure troubleshooting............................................................................................................................1–47
Audio troubleshooting test instructions.........................................................................................................................1–49
Energy management calibration.......................................................................................................................................1–60
Table 3 Calibration value limits................................................................................................................................................1–60
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List of Figures
Figure 1 Main troubleshooting tree..........................................................................................................................................1–5
Figure 2 SysCLK from C7528 & C7531........................................................................................................................................1–9
Figure 3 SleepCLK from R7558..................................................................................................................................................1–10
Figure 6 Flashing pic 1. Take single trig measurement for the rise of the BSI signal.............................................1–15
Figure 7 Flashing pic 2. Take single trig measurement for the rise of the BSI signal.............................................1–15
Figure 8 CMT SDRAM CLK from pin J2806...............................................................................................................................1–16
Figure 9 NOR CLK from J2813....................................................................................................................................................1–17
Figure 10 COMBO NAND in boot pic 1. ...................................................................................................................................1–19
Figure 11 USB 1: D-TXD (POP-PORT pin6) and D+RXD (POP-PORT pin7) voltage levels when USB connected..1–21
Figure 12 USB 2: Take single triggered measurement on the rising edge of the Helen usb0_txen (J4813) line.1–22
Figure 15 Data transfer...............................................................................................................................................................1–26
Figure 17 Phoenix settings for Bluetooth troubleshooting............................................................................................1–44
Figure 18 Bluetooth self tests in Phoenix.............................................................................................................................1–45
Figure 19 Single-ended output waveform of the Ext_in_HP_out measurement when earpiece is connected.1–52
Figure 20 Differential output waveform of the Ext_in_IHF_out out loop measurement when speaker is
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Baseband troubleshooting
Context
This section is intended to be a guide for localising and repairing electrical faults. The fault repairing is divided
into troubleshooting paths. The following main troubleshooting tree describes the different baseband
troubleshooting paths to be followed in fault situations.
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Legend
Take singe trig measurement on the rising edge of the DAT signal.
Figure 14 MMC card initialization
Legend
Take single trig measurement on the rising edge of the DAT signal.
Figure 15 Data transfer
Keyboard troubleshooting
Context
There are two possible failure modes in the keyboard module:
• One or more keys can be stuck, so that the key does not react when a keydome is pressed. This kind of failure
is caused by mechanical reasons (dirt, rust).
• Malfunction of several keys at the same time; this happens when one or more rows or columns are failing
(shortcut or open connection). For a more detailed description of the keyboard and keymatrix, see section
Keyboard (Page ).
If the failure mode is not clear, start with the Keyboard Test in Phoenix.
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Certificate restoring for BB5.0 products is basically the same process as IMEI / ESN Rebuild for DCT-4 generation
products.
All tunings (RF & Baseband, UI) must be done after replacing the flash IC.
The procedure for Certificate Restoring when Flash IC has been replaced:
• Flash the phone with the latest available software (Use FPS-8 or FPS-10, USB Flashing does not work for a
dead BB5.0 phone).
• Create a request file.
• Send the file to Nokia by e-mail.
• When you receive a reply from Nokia, carry out Certificate Restoring.
• Tune the phone completely (Note: SX-4 Smart Card is needed).
• If phone resets after a certificate restore, reflash the phone again.
Required equipment and setup:
• Phoenix service software v 2004.39.7.70 or newer.
• The latest phone model specific Phoenix data package.
• PKD-1 dongle
• SX-4 smart card (Enables BB5.0 testing and tuning features)
• External smart card reader (Only when FPS-8 is used, FPS-10 has an integrated smart card reader)
• Activated FPS-8 flash prommer OR FPS-10 flash prommer
• Flash update package 03.18.004 or newer for FPS-8 or FPS-10 flash prommers
• CU-4 control unit
• USB cable from PC USB Port to CU-4 control unit
• Phone model specific adapter for CU-4 control unit
• PCS-1 cable to power CU-4 from external power supply
• XCS-4 modular cable between flash prommer and CU-4
Note: CU-4 must be supplied with +12V from external power supply in all steps of Certificate Restoring.
Steps
1. Program the phone software.
iStart Phoenix and login. Make sure the connection has been managed correctly for FPS-8 or FPS-10.
iiUpdate the phone MCU software to the latest available version.
If the new flash is empty and the phone cannot communicate with Phoenix, the procedure in this case
is a “Dead Phone Flash” described below.
iii
Choose the product manually from File → Open Product , and click OK.
Wait for the phone type designator (e.g. “RM-1” ) to be displayed in the status bar.
iv
Go to Flashing → SW Update and wait until Phoenix reads the product data as shown in the following
picture.
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iv Name the file so that you can easily identify it, and click Open.
The name of the file and its location are shown.
vTo create the Request file, click Start.
vi When the file for Certificate Restore has been created, send it to Nokia as an e-mail attachment.
3. Restore Certificate.
For this procedure, you must supply +12 V to CU-4 Control Unit from an external power supply.
iSave the reply file sent by Nokia to your computer.
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vii To write the file to phone, click Start.
Next action
After a successful rewrite, you must retune the phone completely by using Phoenix tuning functions.
Note: CARRY OUT ALL TUNINGS (BASEBAND, RF, UI)!
Display module troubleshooting
General instructions for display troubleshooting
The first step is to verify with a working display that the fault is not on the display module itself. The display
module cannot be repaired.
The second step is to check that the cellular engine is working normally. This can be done by connecting the
phone to a docking station and starting Phoenix service software. With the help of Phoenix read the phone
information to check that also application engine is functioning normally (you should be able to read the APE ID).
After these checks proceed to the display troubleshooting flowcharts. Use the Display Test tool in Phoenix to
find the detailed fault mode.
Operating modes of the display
Display is in a normal mode when the phone is in active use.
Display is in a partial idle mode when the phone is in the screen saver mode.
The operating modes of the display can be controlled with the help of Phoenix.
Table 1 Display module troubleshooting cases
Display blankThere is no image on the display. Display looks the
same when the phone is on as it does when the
phone is off. The backlight can be on in some cases.
Image on the display not correctImage on the display can be corrupted or part of the
image can be missing. If part of image is missing
change the display module. If the image is otherwise
corrupted, follow the appropriate troubleshooting
diagram.
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Backlight dim or not working at allBacklight LED components are inside the display
module. Backlight failure can also be in the connector
or in the backlight power source in the main engine
of the phone. Backlight is also controlled
automatically by the ambient light sensor.
This means that in case the display is working (image
OK) but the backlight is not, follow the Display and
keyboard backlight troubleshooting (Page 1–38).
Visual defects (pixel)Pixel defects can be checked by controlling the
display with Phoenix. Use both colours, black and
white, on a full screen.
The display may have some random pixel defects that
are acceptable for this type of display. The criteria
when pixel defects are regarded as a display failure,
resulting in a replacement of the display, are
presented the table below.
Table 2 Pixel defects
ItemWhite dot defectBlack dot
defect
1Defect
counts
2Combined
defect
counts
Note: Blinking pixels are not allowed in normal operating temperatures and light conditions.
RGBWhite Dot
Total
1111
Not allowed.
Two single dot defects that are within 5 mm of each other should be interpreted
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Display and keyboard backlight troubleshooting
Context
The device has one LED driver that provides current for both display and keyboard backlights.
Keyboard backlights are turned ON only in dark conditions. This is controlled by the Ambient Light Sensor (ALS).
Also the brightness of the display is adjusted by the ambient light sensor.
You can enable/disable ALS with the help of Phoenix service software.
Display brightness can be adjusted manually, if ALS is disabled. If the ambient light sensor is enabled, it adjusts
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ALS troubleshooting
Context
• If a phototransistor is broken, replace it with a typical phototransistor.
• The phototransistor has to be also replaced, if calibration values are lost by some other reason (e.g. after
replacing the NOR memory chip D3000).
• If the phototransistor is changed, the calibration value in the phone memory has to be changed to the default
value ‘1’.
• Make sure that you have completed Display and keypad backlight troubleshooting (Page 1–38) first before
starting ALS troubleshooting.
Here are some hints for ALS troubleshooting; the following troubleshooting diagram refers to these:
• Phoenix LED control tool also shows you luminance. The correct luminance in darkness is <20lx, and in office
environment 100-2000lx. The luminance value depends strongly on the light source and the angle of the
phone, so these values are only a rough guideline.
• LED driver control voltage measurement points can be found from LED driver troubleshooting (Page
1–41) section. When backlight brightness is set to 100%, both GENOUT-signals are low, and enable PWM is
100%.
• Phoenix has an ambient light sensor calibration tool for changing calibration values. The pull-up resistor
calibration is done first:
a Cover the light guide (upper part of the A Cover).
b Click Start Write .
cManually change the ambient light sensor value to the default value. There is no special tool for this, but
you have to perform calibration normally and then set the Co-efficient result to 1 before writing it to the
phone memory.
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Bluetooth troubleshooting
Introduction to Bluetooth troubleshooting
There are two main Bluetooth problems that can occur:
ProblemDescription
Detachment of the BT antenna.This would most likely happen if the device has been
dropped repeatedly to the ground. It could cause the
BT antenna to become loose or partially detached
from the PWB. (see the following section for details
on BT antenna HW and mechanics)
Malfunction in the BT ASIC, BB ASICs or Phone’s BT SMD
components.
The main issue is to find out if the problem is related to the BT antenna or related to the BT system or the
phone’s BB and then replace/fix the faulty component.
This is unpredictable and could have many causes
i.e. SW or HW related.
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Bluetooth settings for Phoenix
Steps
1. Start Phoenix service software.
2. From the File menu, choose Open Product, and then choose the correct type designator from the Product list.
3. Connect the phone to a docking station in the local mode.
4.
Choose Testing → Bluetooth LOCALS .
5. Locate JBT-9’s serial number (12 digits) found in the type label on the back of JBT-9.
6. In the Bluetooth LOCALS window, write the 12-digit serial number on the Counterpart BT Device Address line.
This needs to be done only once provided that JBT-9 is not changed.
7. Place the JBT-9 box near (within 10 cm) the BT antenna and click Run BER Test.
Results
Figure 17 Phoenix settings for Bluetooth troubleshooting
Bluetooth self tests in Phoenix
Steps
1. Start Phoenix service software.
2. From the File menu, choose Open Product, and then choose the correct type designator from the Product list.
3. Connect the phone to a docking station in the local mode.
4.
Choose Testing → Self Tests .
5. In the Self Tests window check the bluetooth check box.
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When measuring with a single-ended probe each output is measured against the ground.
Internal handsfree output is measured using a current probe, if a special low-pass filter designed for measuring
a digital amplifier is not available. Note also that when using a current probe, the input signal frequency must
be set to 2kHz.
The input signal for each loop test can be either single-ended or differential.
Required equipment
The following equipment is needed for the tests:
• Oscilloscope
• Function generator (sine waveform)
• Current probe (Internal handsfree DPMA output measurement)
• Phoenix service software
• Battery voltage 3.7V
Test procedure
Audio can be tested using the Phoenix audio routings option. Three different audio loop paths can be activated:
• External microphone to Internal earpiece
• External microphone to Internal handsfree speaker
• Internal microphone to External earpiece
Each audio loop sets routing from the specified input to the specified output enabling a quick in-out test. Loop
path gains are fixed and they cannot be changed using Phoenix. Correct pins and signals for each test are
presented in the following table.
Phoenix audio loop tests and test results
The results presented in the table apply when no accessory is connected and battery voltage is set to 3.7V.
Earpiece, internal microphone and speaker are in place during measurement. Applying a headset accessory
during measurement causes a significant drop in measured quantities.
The gain values presented in the table apply for a differential output vs. single-ended/differential input.
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Baseband manual tuning guide
Energy management calibration
Before you begin
Energy Management (EM) calibration is performed to calibrate the setting (gain and offset) of AD converters in
several channels (that is, battery voltage, BSI, battery current) to get an accurate AD conversion result.
Hardware setup:
• An external power supply is needed.
• Supply 12V DC from an external power supply to CU-4 to power up the phone.
• The phone must be connected to a CU-4 control unit with a product-specific flash adapter.
Steps
1.Place the phone to the docking station adapter (CU-4 is connected to the adapter).
2.Start Phoenix service software.
3.
Choose File → Scan Product .
4.
Choose Tuning → Energy Management Calibration .
5.To show the current values in the phone memory, click Read, and check that communication between the
phone and CU-4 works.
6.Check that the CU-4 used check box is checked.
7.Select the item(s) to be calibrated.
Note: ADC calibration has to be performed before other item(s). However, if all calibrations are selected
at the same time, there is no need to perform the ADC calibration first.
8.Click Calibrate.
The calibration of the selected item(s) is carried out automatically.
The candidates for the new calibration values are shown in the Calculated values column. If the new
calibration values seem to be acceptable (please refer to the following "Calibration value limits" table),
click Write to store the new calibration values to the phone permanent memory.
Table 3 Calibration value limits
ParameterMin.Max.
ADC Offset-2030
ADC Gain1200014000
BSI Gain11001300
VBAT Offset24002650
VBAT Gain1900023000
IBAT (ICal) Gain775012250
9.Click Read and confirm that the new calibration values are stored in the phone memory correctly. If the
values are not stored to the phone memory, click Write and/or repeat the procedure again.
10. To end the procedure, close the Energy Management Calibration window.