Antenna troubleshooting
Troubleshooting flow
RF tunings
Introduction to RF tunings
Phone RF is tuned in production. There is no reason to do the re-calibration unless:
• one or more of the RF components is changed
• flash memory chip is changed or otherwise corrupted.
Caution: RF calibration is always performed with the help of a product-specific module jig, never
with an RF coupler. Using an RF coupler in the calibration phase results in a complete mistuning of
the RF side.
RM-180
Nokia Customer Care RF Troubleshooting and Tuning Guide
Page 7 –14 COMPANY CONFIDENTIAL Issue 1
Copyright © 2006 Nokia. All rights reserved.
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