Recently I made a deal with my friend to sell my iphone to him. So, before I let it go, I want to make a clean restore. The iphone was jailbroken. Its been 3 days ive tried restore it, but no chance. Ive tried restore in DFU, recovery, using tinyumbrella, all I get is 3196 error, 11 error, 2005 error and the latest problem is stuck on "preparing iphone to restore". I had also tried using another computer, but still unsuccessful. could it be a hardware problem?