Hey i had to change SIM cards to my old phone because my new one is broke. While i was changing the SIM card, they asked me for a password, i tried all the passwords which i could have given giving to my Service Provider, but i failed. i tried it over 10 times which results in your sim card blocking. i've been following most guides on how to unlock it but i always seem to have a problem. what i'm asking is, if there is anyone out here who could unlock it because i'm in NEED of my phone for my work. I'm willing to pay fee's if there is anyone who can get it done. i can provide you with the Imei, Etc. Sorry if this has been posted in the wrong section. Thank you.
call your service provider and tell them that your sim is blocked and they will give you the PUK code. I know that works for AT$T because i have had to do it before im not sure about other service providers but i would try with any of them