Dear users, I have a slight problem, I am trying to update my iPhone 4 from 4.1 to 5.0.1. For some reason though iTunes keeps giving me an error 11 message. After doing some googling it appears as though its to do with the baseband, and it tells me to use a custom IPSW file. Is there anyway to update my iPhone to 5.0.1 using the official 5.0.1.ipsw file? P.S I have TinyUmbrella on with TSS Server enabled, my blobs are saved and my phone is in DFU mode.