Nokia RM-721 Service Manual page 109

RM-721; RM-722
BB Troubleshooting and Manual Tuning Guide
• If log files are needed, they will be requested. If DLog tool is available, it is recommended to attach the
logs in the case
• Brief step by step description about how the error can be reproduced
• Serial number of SX-4 or SX-4T smart card used
If you are requested to wait for some days, please do so. The system will try to recover any missing
information, and most phones will pass after some working days. If phone still does not pass after 4-5 working
days, it is OK to escalate the case to Nokia. Most phones will pass if you wait.
If the problem can not be solved, and you escalate the case to Nokia, please keep the problematic phones
available for further tests. You may be required to try again or return the problematic phone(s) to Nokia.
If you escalate a case, please do not report problems concerning different phones or phone types under the
same issue if the case is sent back to you. The case should always concern the same phones and types which
originally had the problem. For example, if you escalate a case for RM-159 models and certain IMEI numbers,
please do not escalate the case back with problems concerning other IMEI numbers or phone types. Please
create new cases. Common problem is that the content and problems in the case change, which makes the
troubleshooting very difficult as the original problem and phones in question change into something
completely different.
Tucson Log ID is very important information. Based on the Error ID it is possible to trace the problem in
system.
Baseband manual tuning guide
Energy management calibration
Prerequisites
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).
Phoenix service software.
2. Start
Choose File → Scan Product.
3.
Choose Tuning → Energy Management Calibration.
4.
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
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.
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Calculated values column. If the new
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