Code Agency: Sony Ericsson Secret Codes

Having problems figuring out how to do stuff on your cell phone? I blame the Germans... or more specifically the Nazis. Here's my theory; cell phone manufactures want to make their products as easy to use as possible but enemy forces keep intercepting them and encrypting them with their nefarious Enigma Machine.
In related news; I believe Gremlins cause airplane crashes, stepping on a crack is a prosecutable form of matricide, and the greatest threat to our national security is the Empire rebuilding the Death Star.
Anyway, employing some of the greatest minds in science, our Code Agency has painstaking recreated the World War 2 decryption devices that turned the tide of the war for one specific reason- figuring out Sony Ericsson phones.
Sony Ericsson Secret Codes

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