[Cyrus The Great]

Hi guys,

I have a Mac, and I downloaded PwnageTool 2.2.5. and made a custom 2.2.1 ipsw which preserves the 02.28.00 baseband.

My iPhone is currently a clean 2.2 firwmare with baseband 02.28.00.

So, after I made the custom ipsw, I put my iPhone into DFU mode successfully, so I opened iTunes.

When I held down shift and clicked on "Restore" however, I got an error message saying:

The iPhone "iPhone" could not be restored. An unknown error occurred (1600)

Help Please. Thanks.

[bigdawg]

i am having the same problem, any help would be appreciated.

Thanks in advance

[zeroGsti]

I've done the same thing you guys did and came up with the same error codes. I accidentally upgraded to 2.2.1 and now my phone is at 2.30.03 baseband which screwed my unlocking capabilities with Yellowsn0w. I just ran the new Jailbreak 2.2-5 and everything is jailbroken but not unlocked any longer. I'm just going sit back and let the Dev Team or YellowSn0w figure this whole thing out.

[msgeek]

Hi everyone, I also was unable to resore in iTunes, I get error 1600
I am using a 1st gen macBook Air which seem to have a unique USB port, I wonder if anyone else with the issue is using a macBook Air?

[PorthosPirate]

Originally Posted by Cyrus The Great

Hi guys,

I have a Mac, and I downloaded PwnageTool 2.2.5. and made a custom 2.2.1 ipsw which preserves the 02.28.00 baseband.

My iPhone is currently a clean 2.2 firwmare with baseband 02.28.00.

So, after I made the custom ipsw, I put my iPhone into DFU mode successfully, so I opened iTunes.

When I held down shift and clicked on "Restore" however, I got an error message saying:

The iPhone "iPhone" could not be restored. An unknown error occurred (1600)

Help Please. Thanks.

What kind of Mac (both type and generation) & what operating system version? This started happening around Leopard 10.5.5 and had something to do with the USB drivers getting majorly screwed (it usually relates to DFU mode). There are two things to try if it is the USB problem. First, is the easiest, which is find a POWERED USB Hub and plug your DFU'd iPhone into that, which causes different USB drivers to be used. Other option is to go to the Dev-Team's blog and look for the link that replaces the USB drivers (this can be a little more dangerous if your system doesn't like having an older version USB driver).

Originally Posted by bigdawg

i am having the same problem, any help would be appreciated.

Thanks in advance

See Above.

Originally Posted by msgeek

Hi everyone, I also was unable to resore in iTunes, I get error 1600
I am using a 1st gen macBook Air which seem to have a unique USB port, I wonder if anyone else with the issue is using a macBook Air?

Depends on the Air, but some of them have the same issue as the newer MBs and MBPs. The USB has real limits with DFU mode. I would try the Hub solution again.

[gammada]

Am having the same issue on my Mac and also using an XP PC. No matter how I try, I've been ending with error 21 or 1600.

Am working with the hub solution on mac right now. I'll keep this thread posted.

[msgeek]

Using Macbook Air, Mac OS 10.5.6
I purchased a powered USB Hub, I was able to get to DFU mode, but iTunes gives me the same error message 1600. Any other suggestion?

Originally Posted by PorthosPirate

What kind of Mac (both type and generation) & what operating system version? This started happening around Leopard 10.5.5 and had something to do with the USB drivers getting majorly screwed (it usually relates to DFU mode). There are two things to try if it is the USB problem. First, is the easiest, which is find a POWERED USB Hub and plug your DFU'd iPhone into that, which causes different USB drivers to be used. Other option is to go to the Dev-Team's blog and look for the link that replaces the USB drivers (this can be a little more dangerous if your system doesn't like having an older version USB driver).



See Above.



Depends on the Air, but some of them have the same issue as the newer MBs and MBPs. The USB has real limits with DFU mode. I would try the Hub solution again.

[PorthosPirate]

I would try using QuickPwn on your current version of the clean 2.2 and then use Pwnage to upgrade to the 2.2.1 version after the 2.2 has already been Pwn'd. That way you wouldn't need DFU mode in iTunes at all. Once it is Pwn'd you can use regular restore to put on the 2.2.1 custom firmware.

[msgeek]

OK, Thanks, but I would like to confirm since the dev team blog clearly states "# GOLDEN RULE: If you have a 3G iPhone running 2.2 firmware and you want to keep your ability to use yellowns0w (or the option to use it in the future) do NOT use QuickPwn, and do not use the official ipsw or the iTunes update process without using PwnageTool. "

Will I be able to quickpwn to firmware 2.2 with QuickPwn 2.2.5 for Mac?
Don't get me wrong, I really appreciate the help, I am just uneasy with all the trouble I have been having...

Thanks

[PorthosPirate]

The note is to not upgrade to 2.2.1 without using PWNage (thereby avoiding the modem upgrade to 2.30). If you QuickPWN 2.2 (you can use the Apple 2.2 IPSW to clean install) then you can use the PWNage IPSW to upgrade to 2.2.1.

That process will preserve the 2.28 Modem firmware

[msgeek]

Ok, sorry, but I need help again. I was able to quickpwn to 2.2 succesfully, the phone now is back and iTunes synched it, but it does not seem activated anylonger. I do not see my provider signal and I cannot make call 8-(

Any suggestion?

[Zwayne]

What is the baseband? And what carrier do you use?

[msgeek]

My carrier is Rogers and my baseband is 02.28.00

[Zwayne]

Did you check on activate in quickpwn?

[msgeek]

I did not see such option but I did see one in pwnage tool, I will try that. I just thought since it had been activated with this SIM before that it was not necessary. Obviously I have a lot to lern about this process.

Many thanks to all those who helped me so far!