To view Software Version : *#9999#
Nokia 5610 Secret Codes
*#92772689# for checking ISDN number.
Nokia 5610 Secret Codes
1) Serial No.
2) Made
3) Programming date
4) Repaired
5) Transfer user data ?
6) Life Timer

*3001#12345# for field test mode and nam selection and some other stuff...
1) NAM 1
a. Home System ID
b. Own Number
c. Alpha Tag
d. PSID/RSID lists
e. Change Defaults
2) NAM 2
a. Home System ID
b. Own Number
c. Alpha Tag
d. PSID/RSID lists
e. Change Defaults
Nokia 5610 Secret Codes
3) Security
a. Displays security code
Nokia 5610 Secret Codes
4) Emergency
a. Emergency number 1
b. Emergency number 2
c. Emergency number 3

5) SW Version
a. Displays sw version
Nokia 5610 Secret Codes
6) Serial No.
a. Displays ESN
Nokia 5610 Secret Codes
7) Programmed
Nokia 5610 Secret Codes
8) Field Test
Nokia 5610 Secret Codes
*#639# to change NAM
Nokia 5610 Secret Codes
Free SMS Tip
1. Turn your phone off.
2. Turn it on and enter your PIN
3. enter *#746025625# 4. now "SIM CLOCK STOP ALLOWED" will be displayed.
Now, you can send SMS for Free !.
If you turn your phone off and later on, you have to re-enter this code