It's not really necessary to post patches here.
There's a sticky thread with patches for DB2020 phones.
DB2020 patches sorted by phone and FW version - Top Sony Forums
I stopped adding new DB2020 unlock patches since simox remove simlock generator should work for all firmwares now. It's very easy and fast to create patches for your phone.
Remove SIM-lock patch generator - Page 18 - Top Sony Forums