To Un Block sim card-pin blocked

type **042*pin2 

old*newpin2*newpin2*

call waiting

to deactivate #43#

 *43# to activate

Hide Show your phone number

• when calling, put one of these codes below in front of the number that you are going to call. 
•  
• (*#30# / *#31# or *31# / #31# ) Works on some networks.

block SMS reception

(if you are spammed by someone) just press this code: *35*xxxx*16# xxxx is your Call Barring code (default is 0000). To remove this barring type: #35*xxxx#