Secret codes for Motorola feature phone

Motorola has been focusing on making and marketing Android phone since its buyout by the search giant Google. However Motorola used to be well known as its feature phone, and it initiated the Symbian OS. These codes below apply to Moto feature phone exclusively and don’t waste your time trying them on its Android phone.

*#06#, (, not included, same below) shows IMEI number
*7, locks the screem with two keys, LOL
[] [] [] 0 0 8 [] 1 [], select phone line
[] [] [] 1 0 5 [] 1 [], adds phone book to the main menu
[] [] [] 1 0 7 [] 1 [], adds messages to the main menu
[] [] [] 1 0 8 [] 1 [], copys SIM memory / phone book menu
[] [] [] 1 1 3 [] 1 [], shows Eng Field options on the main menu
menu
[] [] [] 1 0 1 [] 1 [], sets slow frequency of the search menu
[] [] [] 1 0 2 [] 1 [], sets medum frequency of the search menu
[] [] [] 1 0 3 [] 1 [], sets fast frequency of the search menu
[] [] [] 1 1 9 [] 1 [], enables EFR, what’s it anyways?
[] [] [] # # # [] 1 [], shows function
[] [] [] 0 0 4 [] 1 [], changes the pin code
[] [] [] 0 0 5 [] 1 [], unlock your phone using the PUK code

Note: [] (pause) means pressing and hold the * key until the box appears

There’s another amazing feature for Moto phone, that is, you can change the GSM frequency among 900/1800 or 850/1900 ranges by entering the engineering mode and inputing below codes in 4 easy steps.
Step 1, enter the main menu;
Step 2, press 048263* quickly
Step 3, select Engineering menu under “Opcode”
Step 4, try below codes:
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

Here is how to to add extra message space to your Motorola C350 C450 C550 or C650 series phones.
1, press menu button;
2, press 048263* quickly,
3, enter 47 on the popup menu and press OK, press 50 and OK, press 1 OK, press 64 OK, press 1 OK, press 186 and OK. Then you will receive an extr