Nokia Customer Care TF4 Technical Information
Company Confidential TFE-4/RV-1
Issue 2.0 Mar/2005 Copyright © 2005 Nokia Corporation. Page 8b-21
Company Confidential
Figure 9: Nokia 610/616 specific SIM Realization
Within TFE-4/RV-1 there is a protection mechanism used to protect the Simcard when
the car battery is out of range. The 47K pulldown resistor on BSI will be only activated
when The car battery is in the right range. If not the BSI input of the UEM is driven
against Vflash1 by R202 on the engineboard. In this case the SIM card is disabled imme-
Vflash1
R202
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