FREE SIM unlock codes for Orange San Francisco and ZTE Blade
 

I got my unlock code from NckCodes, but it looks like this site works FOR FREE!!!!

Free Instant Unlock Codes for Alcatel, Huawei Modems & ZTE Mobile Phones

Put your IMEI in, select ZTE, leave the default model as ZTE BLUEBELT, pop in the not-a-robot code. In the box above the IMEI you'll receive your code. Gave me the same code as Nckcodes sent me.

Some further instructions so you don't have to look elsewhere (and see also Paul's video below):
01.Use the dialler and enter this to see your IMEI: *#06# (don't press Call!).
02.Get your unlock code from the site above.
03.Double-check you used the correct IMEI number -- it's free to retry!
04.Turn off your phone.
05.Open the back.
06.Remove the battery.
07.Remove the (Orange?) SIM card.
08.Insert a SIM card from a different operator.
09.Replace battery.
10.Replace back.
11.Turn on phone.
12.(If prompted, enter any personal [4-digit?] PIN number that you may have set on the new SIM.)
13.Now you should be prompted to enter the 8-digit unlock code ("SIM network unlock PIN"). Do it carefully!
This free code calculator is also available at their parent site:

Free Instant Unlock Codes for Alcatel, Huawei Modems & ZTE Mobile Phones
Original source: FREE SIM unlock codes for Orange San Francisco and ZTE Blade - Android @ MoDaCo

Thanks FOr sharing this info (already had it )
Ps: not working with ZTE BLADE new firmware.
the same imei in 2 websites and in polarbox calculator got the same unlock code but it did not work.
WAITING FOR POLAR UPDATE.

GSMUNIVERS

does it work at blade 3?

Huawei u8160 (vodafone 858 smart)- i need the unlock come IMEI-356652044935748. THANKS.