DFU Articles on TUAW - The Unofficial Apple Weblog

iPhone: What is DFU mode, and what's the difference from recovery mode?

by Matt Tinsley (May 25th, 2011)

In the past couple of days, we've seen reports here and there of iPhones getting stuck in a restart loop. The black screen with the Apple logo shows up, holds for a while, and then disappears again; repeat ad infinitum. While it's not clear yet exactly what's triggering the issue (the ...

Mac OS X 10.5.6 update breaks DFU Mode for iPhone?

by Cory Bohon (Dec 15th, 2008)

iPhone Alley is reporting that the Mac OS X 10.5.6 update is causing problems for the jailbreaking community. According to a recent post at the site, if you place the iPhone in DFU mode (similar to a restore mode), your iPhone will be unrecognized by a Mac running 10.5.6. DFU mode is required to ...