Can't really help if any don't work (some may be network/subscription dependant).
Don't blame me if you lock/damage anything whilst trying these 8)
The @ represents pressing the "Send" key on your mobile
**04*oldPIN*newPIN*newPIN#@ changing the PIN-code
**042*oldPIN2*newPIN2*newPIN2#@ changing the PIN2-code
**05*PUK*newPIN*newPIN#@ unlock a card with PIN locked
**052*PUK2*newPIN2*newPIN2#@ PIN2 decoding (after 3x wrong input)
*#06# IMEI Number showing
##002#@ all call diverts off
**004*DestNo#@ set all conditioned call diverts to DestNo on and active
##004#@ all conditioned call diverts (busy, not reachable, no answer) off
**21*DestNo#@ Automatic divert all calls to DestNo on and active
*21#@ Automatic divert all call DestNo activate
##21#@ Automatic divert all calls to DestNo off and inactive
#21#@ Automatic divert all calls to DestNo deactivate
*#21#@ Automatic divert all calls to DestNo status
**61*DestNo#@ Call divert when not answered on and active
*61#@ Call divert activate
##61#@ Call divert when not answered off and inactive
#61#@ Call divert deactivate
*#61#@ Call divert when not answered status
**62*DestNo#@ Call divert if not reachable on and active
*62#@ Call divert activate
##62#@ Call divert if not reachable off and inactive
#62#@ Call divert deactivate
*#62#@ Call divert if not reachable status
**67*DestNo#@ Call divert when busy on and activate
*67#@ Call divert activate
##67#@ Call divert when busy off and inactive
#67# Call divert deactivate
*#67#@ Call divert when busy status
**03*330*oldPW*newPW*newPW#@ Changing the password for call barring
**33*PW#@ Barring all outgoing calls on (PW one row before)
#33*PW#@ Barring all outgoing calls off
*#33#@ Barring all outgoing calls status
**330*PW#@ Barring all calls on
#330*PW#@ Barring all calls off
*#330*PW#@ Barring all calls status
**331*PW#@ Barring all outgoing international calls on
#331*PW#@ Barring all outgoing international calls off
*#331#@ Barring all outgoing international calls status
**332*PW#@ Barring all outgoing international calls except homecountry on
#332*PW#@ Barring all outgoing international calls except homecountry off
*#332#@ Barring all outgoing international calls except homecountry status
**333*PW#@ Barring all outgoing calls on (PW one row before)
#333*PW#@ Barring all outgoing calls off
*#333#@ Barring all outgoing calls status
**35*PW#@ Barring all incoming calls on
#35*PW#@ Barring all incoming calls off
*#35#@ Barring all incoming calls status
**351*PW#@ Barring all incoming calls if abroad on
#351*PW#@ Barring all incoming calls if abroad off
*#351#@ Barring all incoming calls if abroad status
**353*PW#@ Barring all incoming calls on
#353*PW#@ Barring all incoming calls off
*#353#@ Barring all incoming calls status
*43*#@ Call waiting on
#43##@ Call waiting off
*#43#@ Call waiting status
**61*DestNo**Seconds before divert#@ Divert call if not answered for 'seconds' (Note: Seconds must be 5, 10, 15, 20, 25, 30)
#30#DestNo@ No presentation of the number of the incoming call (CLIP)
*30#DestNo@ Presentation of the number of the incoming call (CLIP)
*#30#@ CLIP status
#31#DestNo@ Your number will not be send for the actual call (CLIR)
*31#DestNo@ Your number will be send for the actual call (CLIR)
*#31#@ CLIR status
*76#@ Presentation of the number under which I reached the other one (not his number if he has turned on a call diversion!) (COLP) on
#76#@ Presentation of the number under which I reached the other one (not his number if he has turned on a call diversion!) (COLP) off
*#76#@ Presentation of the number under which I reached the other one (not his number if he has turned on a call diversion!) (COLP) status
*77#@ Presentation of the number under which the caller has reached me (not my number if I have turned on a call diversion!) (COLR) on
#77#@ Presentation of the number under which the caller has reached me (not my number if I have turned on a call diversion!) (COLR) off
*#77#@ Presentation of the number under which the caller has reached me (not my number if I have turned on a call diversion!) (COLR) status
