Dont use Sony Ericsson update service.
your phone can be upgraded to cid53 and there is no free unlock solution for DB2020 cid53.
den_po from se-nse wrote
Attention! Cid53!, be careful with seus
at least for w580 seus downloads cid53 firmwares/loaders and upgrade-scripts:
Code:
;Created Tue Jan 08 09:43:31 CET 2008 by GDFtoEMMA 1.31
;User: 23048727
;Host: seldw165
;Exclude sim lock: No,
;Check CDA: No
; CROD message from (RED 49, 51 or 52)->RED53 DB2020
phones with the following:
* # 06 #
The first 8 digits
35159602
35170701
35170801
35170901
35171001
35171202
35194101
35194201
35194301
35220601
35220701
35220801
35223902
35224102
3 5240101
35243002
35256002
35282601
35283601
35283701
35306501
35306601
35342701
35381301
35399601
35457901
35462501
35462601
3 5463701
35463801
35463901
35464801
35464901
35471601
35489301
35489401
35491101
35536301
35570401
35578501
35601901
35612701
3 5635701
35665701
35665801
35683301
35683401
35714301
35715401
35715501
35731501
35777401
35780401
35783001
35791201
35796601
3 5796701
35799401
35851601
35852401
35901901
35908501
35908701
35908801
35917901
35923501
35928501
35934601
35945101
35958401
3 5960001
35975701
35988501
35988601