hi,
These are some download links here :
4shared.com - online file sharing and storage - download Change IMEI DB2020.exe
4shared.com - online file sharing and storage - download Full Flash CID52.exe
4shared.com - online file sharing and storage - download Reset Usercode.exe
4shared.com - online file sharing and storage - download Unlock Db2020_RED51.exe
4shared.com - online file sharing and storage - download VIDEO MANUAL FOR FREE FLASHING db2020 pnx5230 db2012 PDA 1.exe
4shared.com - online file sharing and storage - download VIDEO MANUAL OF W550 FLASHING + FIRMWARE UPGRADE...exe
4shared.com - online file sharing and storage - download VIDEO MANUAL FOR FREE FLASHING db2020 pnx5230 db2012 PDA..exe
And Some Tutorials for persain users : (language : Farsi)
4shared.com - document sharing - download SETool2Lite (01).pdf
4shared.com - document sharing - download SETool2Lite (02).pdf
i wish these files be usefull for you.
and sorry if my english isn't very good as you!!
and you can download SETOOLS here :
4shared.com - online file sharing and storage - download SE Tool Lite 1[1].08.zip