first thing: w810i can be done with setool lite and a patch, already discussed many times, patch is here and also on other forums
2nd: reffering "YES WE CAN UNLOCK CID 49,51 ALSO FREE WITH SETOOL ONLY DB2020"
this is bullshit because you need to buy setool so for a home user that owns a phone or maybe 2 it's not at all an option therefore is not free.
for home users, buying server unlock credits is the only option.