CDA of Sony Ericsson Walkman Series CDA = This number defines which variant of a specific firmware a phone is supposed to have. It lets, among others, SEUS (Sony Ericsson Update Service) know which languange-pack/branding/bandlocks a phone is to be flashed with. CID of Sony Ericsson Walkman Series CID = This number defines the version of SE's protection present in the phone. New CIDs are deployed from time to time, for the sole reason of preventing them from beeing unlocked/flashed/tampered with by non-SE service tools. Current CIDs in use by Sony Ericsson are 36/37/49/50/51/52/53. BLUE/BROWN/RED = This Color defines what kind of phone we are dealing with. BLUE phones have been assembled at the factory, but never been programmed with software/GDFS/IMEI. BROWN phones are developer phones, for testing. Less restrictions are present, as these are used for debugging/beta purposes. RED phones are your typical retail ones The Sony Ericsson Walkman Series Chipset DB2000, DB2010, DB2020, D...