Nextel Sim Card

I have a brand new Boost i875, and a SIM card for it. I have a SIM card that is my Nextel phone. I put the Sim Card Nextel i875 in momentum, but he said to enter a password. I do not know the password, what should I do?

***** yo dat bad ... I am a spirit 875 Nextel sim ..... Wen said he is now waiting for enet den juz going to wait about half an hour in the Wen said enterpassword den off turn it Off ... stimulate the SIM card and uses it, IDEN Nextel, but u do not want to increase so they block, but u should be the only time we have to do dat and it will be released .... I wish if this will help the peace .... ***** Yo dey blocked my word I said as a ***** but I said the word black slang ggg-unot!

Nextel does not use the SIM card, but iDEN CHIP. It looks like a SIM card, but it is not. Anyway you will not be able to use your l875 with Nextel!