- Request your unlock code in the fastgsm.com
- Then remove back cover your Vodafone Smart 4 Mini 1588
- Now remove the battery and your Vodafone Card!
- Put the other network SIM card.
- Put the battery correctly
- Power on your phone!
- Put in your pin card and press Enter
- Now put your nck code, that was provided by Fastgsm
- And, it was unlocked
Full tutorial video :