bricked(?) iPhone 4 mystery... please read!
Hey everyone, I joined here because I've been reading the articles and how-to's ever since I got my first iPhone, and I have a great deal of faith in the members here to hopefully provide me with an answer to my problem...
iPhone 4, AT&T, GSM, iOS 5.0.1
Last night, I was using my phone as normal when it shut itself off and then proceeded to continually boot to the Apple logo, shut off, and then repeat. Initially I figured just a quick iTunes restore would do the trick but instead I got a slew of errors, depending on several factors. (ie: hosts file pointing at Saurik's server or Apple's server, TinyUmbrella TSS on/off, etc Those errors included 20, 21, 1602 most frequently.
(Also, to clarify, I think it should be said that I'm not really a tech or Apple newbie, and that I have successfully pwned and SSH'd into this phone without any problems.)
I tried every suggestion to correct those errors including iREB, RecBoot, creating a custom firmware, doing the restore in normal DFU mode, in pwned DFU mode, I mean the WHOLE shabang. Tried everything and still no dice.
The strange thing that seems to happen is regardless of any factors, when I go to restore in iTunes it says, "verifying restore with Apple...", the progress bar moves, but then the text changes to "Preparing iPhone for restore" my phone suddenly kicks out of DFU mode and attempts to start again, hence starting the infinite booting loop again...
Any suggestions? Thoughts? Feel free to ask questions if I've left something out...
I'm at my wits end and am currently toying with a program called idevicerestore, I even installed ubuntu alongside my Windows installation so that I could compile it and hopefully restore the phone's firmware that way.