An unknown error occurred (6). A solution, anyone?

Hello fellow firmware 2.0 updaters,

After few painstaking moments I have sucessfully unbricked my iPod (whose s/n btw doesn't end with that xW4 something) using following method.

1) Upgraded to iTunes 7.7, tried to update firmware.. error (6) came up
2) Tried update again, even downgrade to 1.1.4, didn't work. My iPod became bricked and after switching on always kept stuck on the "iTunes screen"

Now to the funny part...

3) I have downgraded to iTunes 7.5 (you have to delete *.itl file, iTunes 7.5 gives an error otherwise). If you need proper instructions concerning the downgrade, please google it.
4) Put my iBrick into D F U mode. This is important. There is a difference between "recovery" and "DFU" mode. iPod running in the DFU mode has entirely blank screen! (there are also some guides how to get into DFU on the web)
5) Ran iTunes 7.5 and restored 1.1.4 firmware. Restore succeeded and my iBrick became and iPod again

Hope someone will find this useful.

*The following is relevant to users experiencing the 1604 issue:*

The guy at AppleCare suggested that it might be a "timing error" with the USB sync cable as most of the 1604 errors are caused by a timing error with the sync cable and the 2.0 upgrade; but also said it may be an issue with the iPod Touch.

I went to the local Apple Authorised store (NextByte) on Thursday and explained the issue and they said they had to send the cable off for warranty purposes. So I'd probably have a replacement by Monday. Apple are that tight with their products, that they couldn't even give me a stupid replacement at the same time due to Apple's strict warranty policy! So resigned to the fact that I wouldn't be able to use my iPod Touch until Monday, I went home.

Fortunately I received a message on Friday saying that the cable had arrived as could be picked up. I went back to the store and explained the problem to a couple of staff members and asked if they could install the upgrade for me. After having difficulty logging into my iTunes account on their computers, the guy retrieved his local copy of the upgrade and installed it then and there using my replacement USB sync cable! So now my iPod Touch is FINALLY working with the 2.0 firmware upgrade.

I hope this story might help others. I would suggest sending your cable in for replacement before resorting to sending the iPod Touch in for repair/replacement as in this instance it did appear to be the cable that was causing the incredibly frustr5ating 1604 error.

It has been 14 days from this post and I'm still getting the same bunch of errors. Are the servers still busy?

The only solution I've found is HERE!!!!!!
http://www.youtube.com/watch?v=DCh86zU_CFQ&NR=1

THIS REALLY WORKS, well it did for me!

http://www.youtube.com/watch?v=DCh86zU_CFQ&NR=1

Well, your Youtube clip of how to drop back to 1.1.4 does not answer the issue. It's very easy to find how to restore an earlier version.

My IPT has been returned and has had the "Issue Identified" and a replacement pending. So, there does seem to be a HW problem on earlier models. As I get more information I will share.

i got the same problem

error :EventType : BEX P1 : iTunes.exe P2 : 7.7.0.43 P3 : 487517e1
P4 : iTunes.exe P5 : 7.7.0.43 P6 : 487517e1 P7 : 00094556
P8 : c0000409 P9 : 00000000

APPLE DO SOMETHING

My IPT has been returned and has had the "Issue Identified" and a replacement pending.

Same with me. I had sent my iPod Touch to Apple last week and they identified a problem that warranted replacement. I got the new iPod yesterday and installed the 2.0 Update without any problems whatsoever.

So, my advice to anyone who cannot install the 2.0 update is to send the device back while it's still under warranty. There is likely some underlying hardware issue that may make future updates a problem.

Add me to the list.
This is just getting silly. We must campaign for a proper 2.0 to be released that will work for all of us.

Based on my experience and feedback from Apple, it's not the 2.0 Update that's faulty but the iPod hardware itself. Best to take advantage of their warranty service while it's still available.

If it is a hardware issue, then Apple needs to recognize it, and provide a means for folks to "trade in" effected units. I am the second owner of my 16GB iPod Touch, and therefore, I'm not sure what, if any, warranty protection I have.

I have been able to load 1.1.4 and 1.1.5 without issue. Only 2.0 appears to be a problem.

I HAVE been able to load 2.0 using the "Pwnge" tool. This leads me to believe that although it is most likely a hardware issue, that there SHOULD be a software fix that Apple can offer.

My iPod Touch was replaced with a new unit... Went to apple store and asked the technical team to try installing 2.0 update for me. When it failed, they suggested that I do a warranty claim. Four days later, replacement iPod was shipped to the shop. At least the warranty claim is fast...

So again, those facing this problem, try to get your iPod Touch into 'warranty claim' mode instead of 'DFU' mode... LOL

Went to the Genius Bar and had it replaced for free under warrenty within 15 minutes and even walked out of the store with the new iPod

To restore your touch you have to go onto another computer, install version 1.1.5 and restore it on that. I still have not got version 2.0, any answers.

Same here.