my kid placed passcode on my mobile phone had forgotten it help me?

[amarokair]

He tampered with it and cannot remember. my service provider could not unlock it .He used four digits

I can receive calls but cannot make calls . any help ?

[steff]

is it on the phone or actual sim card if its the phone juct get the p.u.k lock no or else get it unlocked

[kiran1]

What is your mobile and model ?
If you forgot the security code you have to reset you mobile. Its the only way to use your security code again....
If you use nokia or alcatel mobile means visit here Ihav.net for the master reset code service and get the reset code........

[Unregistered]

He tampered with it and cannot remember. my service provider could not unlock it .He used four digits

I can receive calls but cannot make calls . any help ?

Whats your mobile manufacturer and model ? try default security code to break lock from your phone . If your default security codes not working, use Master reset code . you can get it from any of the online vendors like Unlocking4free.com to reset it . Here, they provides code for old model Nokia DCT and Alcatel phones .