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ManualsBrandsNokia ManualsCell Phone2650
29303132333435363738
RH-53/54
Nokia Customer Care 8-System Module
32 COMPANY CONFIDENTIAL ISSUE 1 09/2004
Copyright © 2004 Nokia. All Rights Reserved.
Security
The phone flash program and IMEI code are software protected, using an external security de-
vice that is connected between the phone and a PC. The security device uses IMEI number
(IMEI is stored in UEM non-volatile memory cells), the software version number and a 24bit
hardware random serial number that is read from the UPP, and calculates a flash authority
identification number, that is stored into the phone (emulated) EEPROM.