Nokia MOBILE TERMINAL Service Manual page 166

The calibration has to be repeated for each GSM band.
Steps
1. Connect the GSM connector of the module jig to a signal generator.
Phoenix service software.
2. Start
3. From the Operating mode drop-down menu, set mode to Local.
4. Select GSM900 band.
5. Choose Tuning→GSM→Rx Band Filter Response Compensation .
6. Select Tuning mode: manual
7. Click Start.
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RF troubleshooting
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