(Note: pause means the * key held in until box appears)
To activate RBS type: [pause] [pause] [pause] 1 1 3 [pause] 1 [pause] [ok]
You now have to press the [MENU] and scroll to the 'Eng Field Options' function with the keys, and enable it.
To de-activate RBS type: [pause] [pause] [pause] 1 1 3 [pause] 0 [pause] [ok]
This only works with some versions of software.
These countries has been reported working:
IT (model: F16 HW: 5.2 SW: 2.1)
What's the use of RBS:
Get Distance From Base Station - Place a call, when it is answered, press [MENU] until 'Eng Field Option' is displayed, press [OK], select 'Active Cell', press [OK], press [MENU] until 'Time Adv xxx' appears, where xxx is a number. Multiply this number by 550, and the result is the distance from the RBS (Radio Base Station), in meters.
Get Signal Quality - press [MENU] until 'Eng Field Option' is displayed, press [OK], select 'Active Cell', press [OK], press [MENU] until 'C1' appears. This is the signal quality. If it becomes negative for longer than 5 seconds, a new cell is selected.
Numbered right to left, keypad up, battery down looking
3. True data (TD) (input)
4. Complimentary data (CD) (input)
5. Return data (RD) (output)
6. Audio gnd
7. Audio out
8. Audio in
Sunday, May 2, 2010
Friday, April 30, 2010
These following codes are generally can be used on all Motorola mobile phone devices :
Code to lock keys : Press together *7
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 
   1 1 9  1 
   # # #  1 
   0 0 4  1 
Unblocking using the "puk" number:
   0 0 5  1 
 : (pause) means the * key held in until box appears.
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. Follow the steps below :
enter menu and press 048263* quickly, then you will enter the secret engineering menu
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 4 your Motorola C350 C450 C550 or C650 ;
press menu button, press 048263* quickly, then on the popup menu enter 47 press ok. press 50 and ok. press 1 ok. press 64 ok. press 1 ok. press 186 and ok.
You will receive an extra 50 msgs memory space. Switch phone off and back on.
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