3GS 4.2.1 Baseband Upgrade from 5.15 to 6.15.00 OK, I have been working at this for about an hour in an internet cafe in Paris and haven't gotten it to work yet. I had jailbroken and unlocked my phone with redsn0w and ultrasn0w, tried a European SIM but it just says "Searching". I read an article that said that this problem is a result of being on the 5.15.04 baseband and that I should upgrade to 6.15.00. My attempts at this have been so far unsuccessful. I downloaded Pwnagetool 4.1.3, iPhone1, 2_4.2.1_8C148a_Restore.ipsw, and iPad1,1_3.2.2_7B500_Restore.ipsw but it says "Wrong firmware bundle selected" if I select either of those. Please help. Thank you in advance.