[Poseidon79]

After upgrading my iTunes to 8.0 on my Mac (and reports on a PC also) and DFU restoring to a custom built firmware I get error 1600. I have tried to downgrade back to 7.7.1 and STILL get error 1600. I have seen scattered reports of similar issues. Quickpwn still works because it doesn't go through iTunes. Everyone please stay tuned for further details. If you plan to use pwnage do NOT upgrade to iTunes 8.0 yet.

Conclusion - if you have updated to iTunes 8, use quickpwn to jailbreak and download bootneuter from Cydia to unlock if needed.
*If your device has already been pwned it will continue to accept custom ipsw files... this issue is for phones in a factory state.

Update: Dev team is working on releasing patches for iTunes 8 which will fix this issue.

[wlrm84]

Finally some news on this situation. Thank you

[Chefanim]

Thanks for the tip

[Macboy67]

Same problem

[Reako]

iTunes 8 breaks everything. You need to do a FULL uninstall of iTunes 8.0. That means deleting all files left behind such as MobileDeviceHelper files, Update support for iTunes and so forth. Once you clear your system of iTunes 8.0 files, then go about and reinstall iTunes 7.7.1 or lower, and then plug your Touc/iPhone into the USB port and allow the support files to install. Once that goes through, you should be good to go.

I know this works, because I just spent an hour doing it on a PC.

Reako

Since I haven't tried this on my Mac yet, this is the located files to delete on the PC.

C/Program Files/Apple Software Update
C/Program Files/Common Files/Apple

Also, you need to uninstall QuickTime. Once you uninstall both applications, delete the aformentioned locations, and then do a FULL re-install of 7.7.1 you should be good to go on a PC.

[ojrtega]

raptor jesus will save us....... i know its random and off topic.......

[JazJon]

Yet another reason not to update to 8.0 yet. I'm always happy to rush to a new iphone firmware, but I'm not excited about 8.0 so no rush for me anyway. Itunes 8.0 also breaks the Iphone Browser program, and causes AirTunes-AirPortExpress problems unless you upgade airports firmware. (see engadget)

[mbaharvard]

I dunno! No problem here on PC with 8.0 and pwned. Syncing is working fine - all of my tunes, videos and calendars. I am thankful for that. but I am sorry others are having troubles.

[otee670]

so should we upgrade itunes?

[flounder21]

Oh well too late for that warning...

[reznor9]

UPDATE!!!: You dont have to downgrade back to iTunes 7.7
I also am using a mac... I also upgraded to iTunes 8.0... I also was getting the error(1600) when trying to restore a custom pwnage firmware in DFU mode... was getting frustrated and then decided to try it while NOT in DFU mode, and guess what, it worked! Well it did for me, tell me if it does for you please

So there you have it, you do not have to enter DFU mode. Infact in my case the only way to get the custom firmware to install was to do it out of DFU... just in regular mode.
Step my step:
1) Turn on your iPhone
2) Plug it into your computer and allow iTunes to detect it as normal.
3) Now hit option/restore and select the custom firmware
thats it!

If your stuck in DFU mode and dont know how to get out, just hold the sleep and home button at the same time for about 10 seconds... then release both buttons and just hit the sleep button. The phone should power on like normal

[Reako]

Well syncing is perfect with a Jailbroken 2.0.2. The only problem is re-Jailbreaking and iPhoneBrowser does NOT work with iTunes 8.0..

Reako

[bluaeon]

doh, thats harsh for windows users.

[Dark246]

How odd. Im using iTunes 8.0 on both my mac and pc. I havent seen this error code and Ive restored to 2.0.2 twice already

[Eserel]

x:
No error for me and I just upgraded to 8.0. My ipod is 1.1.4. But I can't go on the internet. My ipod just doesnt recognize the wifi. Know anything bout that?