Universal Secret Codes Sony Ericsson

Getting your IMEI (International Mobile Equipment Identity):
Number: *#06#

Access Software version:
> * < < * < * Reach last dialed numbers: 0 then # The Sony Ericsson Secret Menu screen: -> * <- <- * <- * Change to Default Language (English): <>

Info about SIMLOCK:
< * * <

Opening phone without a SIM card:
**04*0000*0000*0000# followed by on ‘Wrong Pin’ number