Yesterday tried to put a long time before the iphone 3GS brush off the machine, the result of red snow brush, there is an infinite recovery mode. And in the recovery mode is not normal to enter the DFU, not normal brush machine, prompted 20 error. With red Snow, itools and iREB can not be kicked out of the recovery model, tangled dead me! But today I die as a live horse medicine, finally found a solution to share with you:
Method is: With iREB (R6), forced into the DFU mode!
Turn on the IREB-R6, insert your phone into your computer, choose the iphone 3GS (or your model), and then go to the next screen, and follow the prompts, no matter how the iphone is displayed. Press Power+home for 10 seconds first, then release the power button, the program will automatically exploit the phone, and then enter DFU mode. After entering, use itunes,shift+ to restore, select need firmware, carry on recovery.
PS: If you have SHSH in Cydia, add the following line to the hosts: 74.208.10.249 gs.apple.com, or use a small red umbrella or itools self-built TSS server.
Another solution (Iphone4s/iphone5)
The computer turns on the sound so that it can hear the phone's connection because the infinite DFU has been in the black screen only through the sound to judge press the shutdown and home about eight or nine seconds after hearing beep phone disconnected from computer at this time, release the home key press the shutdown key only 3 seconds again hold down the home default 10 seconds release shutdown Key only hold HOME15 seconds beep last cell phone again connected to the computer turned on red Snow normal DFU successfully open the brush to open the itunes 4S and 5 Brush the latest 613 firmware 4 can open the iREB boot brush homemade firmware waiting for Apple progress bar walking around successfully to this brush machine finish Thank goodness there's another way to do it. From the soft DFU directly into the normal DFU is not introduced here