9. Use Phoenix (Testing→Display test→Lights tab) to verify the calibration by reading the luminance value
for both the reference phone and calibrated phone.
Note: Remember that the illuminance readings for the reference and calibrated phones must be
done in the same ambient light conditions. If the illuminance values differ more than +- 10%, repeat
the whole ALS calibration procedure.
10. To end the calibration, click Close.
GPS troubleshooting
GPS antenna
The GPS antenna is located on the back side of the B-cover (right-hand side, next to the battery).
Figure 19 GPS antenna
RM-356
BB Troubleshooting and Manual Tuning Guide
Issue 1 COMPANY CONFIDENTIAL Page 3 –41
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