Hi, I tried to jailbreak my iphone 4 on ios 7.0.4 with evasi0n7 but it got stuck on the apple logo and I can't start it. I had not saved my SHSH blobs so I had to restore to ios 7.1.1 by going into DFU mode but when I do it it gets stuck at ''waiting for iphone'' and the screen of my iphone goes black but is lit. i also tried going into recovery mode but the same thing happens. After a while the ''waiting for iphone'' goes away and error 4005 pops up. What can I do?