#Redsn0w jailbreak 4.2.1 iphone 3g update#
#Redsn0w jailbreak 4.2.1 iphone 3g download#

#Redsn0w jailbreak 4.2.1 iphone 3g download#

Maybe you can describe where in the process you need help?ġ) Download newest Pwnagetool - add 3gs bundle - read 'How to Add a Firmware Bundle to PwnageTool' guide.Ģ) Make custom firmware with Pwnagetool (with 'activation' option DE-selected)ģ) In the end of creating custom firmware Pwnagetool let you put iphone in DFU mode (has not worked for me on previous iphone updates but this time it does)Ĥ) Restore with new custom firmware in iTunes (holding option button down - trick) - (FYI: i had inserted an AT&T sim card in iPhone slot just for no reason)ĥ) iTunes restores firmware (AT&T card did not activate iphone as hoped)Ħ) iPhone reboots and is set as 'new iphone' within itunes (iPhone tries to communicate with AT&T network guess it is too far away lol)ħ) On the Redsn0w: Remember to point resn0w to the original/unmodified apple firmware 4.2.1 in the beginning when askedĨ) When asked 'is this a new model?' of course choose 'no'ĩ) Remember before actual jailbreak to turn iphone OFF while STILL CONNECTED to your computer (as describes in guides here)ġ0) Quit Redsn0w when only when iPhone has finished rebooting. There is really not much else i can say other than follow the guides on iclarified. Especially if you're down in the 3.1.x's with older baseband. Overall, for experienced (not necessarily guru-level) users who can read and figure out their way around PwnageTool and Redsn0w, I would absolutely suggest doing this update. Ive been jailbroke for like 2 weeks and last night I was having to reboot my phone and everytime I would start the re-jailbreak process right after it got to updating kernel it would go to the apple boot logo. I have a 3GS on 4.2.1 and I successfully jailbroke and installed cydia. And I even restored my 3.1.2 Backup to the phonewhich is not normally a good idea. Apparently there are a great deal of bugs in the redsn0w software. My phone has locked up/rebooted one time, and who knows why that might have been I've seen that happen to non-jailbroken devices. I have had no WiFi, Bluetooth, GPS, or other problems. Battery life is nearly as good as I remember under 3.1.2. #2 I have been running 4.2.1 with the 'minimal' bundle on my Old Bootrom 3GS-jailbroken-for several weeks. #1 The 4.2.1 Baseband Version Check must not affect the 3GS (old bootrom) because I am successfully running 4.2.1 with 5.11.07 without problems! I would still like to see this version check detailed more than it has, what models it affects, etc, but it is NOT inhibiting my usage of 4.2.1.

#Redsn0w jailbreak 4.2.1 iphone 3g update#

I was hesitant to do the 4.2.1 update because I could not find ANYWHERE that talked about the 4.2.1 Baseband Version Check as it pertained to the 3GS, or the stability of the 4.2.1 'minimal' bundle for the 3GS released by the Dev-Team.

Just wanted to give some updated info for those who might be asking.