Lock time or user settings problems, Contact service, N100 ccont faulty – Nokia 3210 User Manual
Page 18: Contact service – eeprom checksum fail

CONFIDENTIAL
Service & Analysis Center Europe
Training Team
version 1.0 / 05.11.1999
Page 18 of 37
N100 CCONT Faulty
•
Check if 3,2V on R413 drops to 0V during pressing the Power on button
•
Check if there is a 32.768 kHz square wave on C149
•
Check if PURX on R303 goes up to 2.8 V DC
•
Check if VXO on C102 goes up to 2.8 V DC
•
Check if VBB on C117 goes to 2,8V DC
•
Check if Vref on C123 goes to 1,5V DC
•
Change the CCONT
Contact service – Eeprom checksum fail
EEPROM
internal fault
Reset the phone
(don't use the full
factory set if it is not
permitted to you to
rewrite the IMEI)
EEPROM tune
checksum fail
Check via W INTESLA >
product information, if any
phone data, like: IMEI,
product code, PSN, etc. is
corrupted
Contact Service
Check via W INTESLA / Testing / Selftest
which kind of selftest is failed
Phone is Ok, if
CONTAC T
SERVICE dissapears
No
check 2,8V DC on pin
8 of Eeprom
Check VBB on C117
send this phones to
the SACE Bochum
if it is not permitted to
you to rewrite the
IMEI
change the EEPR OM
if it is permitted to
you, to rewrite the
IMEI
Service Bulletin
general 26
Yes
Yes
not oK
Yes
not oK
oK