IMEI number:
*#06#
Code to lock keys. Press
together *7
Note: [] (pause) means the *
key held in until box appears.
Select phone line - (use this to
write things below the provider
name):
[] [] [] 0 0 8 [] 1 []
Add phonebook to main menu:
[] [] [] 1 0 5 [] 1 []
Add messages to main menu:
[] [] [] 1 0 7 [] 1 []
Copy SIM memory (phonebook
menu):
[] [] [] 1 0 8 [] 1 []
Eng Field options (main menu):
[] [] [] 1 1 3 [] 1 []
Slow (Frequency of search
menu):
[] [] [] 1 0 1 [] 1 []
Medium (Frequency of search
menu):
[] [] [] 1 0 2 [] 1 []
Fast (Frequency of search
menu):
[] [] [] 1 0 3 [] 1 []
Enable EFR:
[] [] [] 1 1 9 [] 1 []
Function :
[] [] [] # # # [] 1 []
Change pin:
[] [] [] 0 0 4 [] 1 []
Unblocking using the "puk"
number:
[] [] [] 0 0 5 [] 1 []
There are lots of similar codes
exist. If you change the last
number to 0 you can deactive
that code. The 3 digit number
at the middle are from 0 to
999. I put the most interesting
codes. (EFR):Enhanced Full Rate
Codec.
You can change GSM
frequencies
to 900/1800 by entering the
enginnering model. Following the
below steps:
enter menu and press 048263*
quickly, then you will enter the
secret engineering menu
under "Opcode"
input 10*0*3 for GSM 900
10*0*4 for GSM 1800
10*0*5 for GSM 1900
10*0*6 for dual band GSM
900/1800
10*0*7 for dual band GSM
850/1900
To add extra message space
4your Motorola C350 C450
C550or C650, press menu
button, press 048263* quickly,
then on the popup menu enter
47 press ok.press 50 and
ok.press 1ok.press 64 ok.press
1
ok.press 186 and ok.You will
receive an extra 50 msgs
memory space.
