My iPad 4 completely froze while I was on the Dropbox app. I restarted the device using sleep/wake and Home buttons, it restarted fine and the Apple logo showed up for a second and suddenly disappeared. Now, the iPad is stuck in DFU Mode with blank screen (screen off actually). I've been trying to kick the DFU out using TU, Recboot, but the options are greyed out and not clickable. TU only gives me the option to Fix Recovery, which does nothing, and recognizes my device as DFU device when connected. Recboot says no device connected. Additionally, I tried redsnow and it says "connected: unknown device (Soft DFU Mode). It won't even let me fix recovery because it claims that my iPad isn't on DFU Mode when it is. I tried to recover through iTunes (latest version) and it recognizes my device in Recovery Mode. Did the hosts trick and deleted Apple's line from there, authenticate, replace etc. but I ended up with error 1600 or 1601 on Windows 7. Tried different lightening cables, computers, operating systems, and still can't revive this brick. I honestly didn't do anything out of ordinary and I jailbroke just fine with evasion with little to no tweaks installed. Please advise. Thanks!