NOTATION: "C+123" means

1. Hold down the C key 
2. Press numeric key 1 
3. Press numeric key 2 
4. Press numeric key 3 

 Release the C key 

To enter Monitor Mode: C+379 
Press Down arrow to browse page 2
Press Down arrow again to browse page 3
Press Up Arrow to see Monitor Mode info during a call 

To enter secret menu: C+987 
press Right Arrow or OK to set the mode 
Press Down Arrow to see page 2

To get Mobile Version info: C+597

To switch between Phase1 and Phase2 mode: C+499 

To instantly turn off the mobile: C+999 

To turn on/off warmstart mode: C+179 

To enter Minuet mode: C+377