Originally Posted by Dim100

Do you loose all the apps from Cydia if you upgrade? I paid $$$$ for my factory unlocked and wanna know if I am gonna have to re-install all the programs I have?

If you're talking about license key activation of paid Cydia apps, that could be different per application. See the developers' websites for information.

If you just want to reinstall the same apps you currently have, you can use an application called AptBackup or follow this procedure: [Cydia] Easy way to reinstall your favorite packages after upgrade/restore firmware. - Hackint0sh

Several folks here reported that an iPhone 2G can be updated to 2.2.1 safely w/o risking activation/unlock, but of course JB is gone then.

For some strange reasons, this doesn't apply to me. I have an unlocked/jailbroken/activated 2G with 2.2 and tried updating it to 2.2.1. And yes, I really used the "Update" option, not "Restore. I used the Shift-key method though, since I had downloaded the firmware file before manually, but that shouldn't matter. After the update is complete, I can see that the unlock has survived as expected, because I see my operator's name in the upper left. BUT the activation is gone, i.e. the iPhone shows the "connect to iTunes" screen, and iTunes then tells me the usual message that I'm using an unsupported SIM card.

At least I was able to downgrade to 2.2 using iTunes Restore method and QuickPWN afterwards without any problem.

Since I have no reason to believe that those folks for whom it did work are lying, I'm asking myself what I'm doing wrong here.

Any suggestions?

Guys you can jailbreak and activate a 2g iphone on firmware 2.2.1
It does not matter if you used restore or a upgrade.

It does involve using a "trick" to activate but it isn't difficult.
If anyone cares for it i will make a small tutorial ?

Yes, please! What is that trick you are referring to?

I'm using a windows computer, so please do not ask me how this trick works on a OSX, because i do not know....

What you need is the latest quickpwn version and firmware 2.2.
2.2 is being used for the jailbreak and yes i know use this at your own risk, but currently a lot of our Dutch users (on a dutch forum) used this trick and it worked.

You need to unpack quickpwn.exe with winzip or winrar.
After that you will see a folder structure like
\quickpwn22\data\PwnmetheusBundles

In this PwnmetheusBundles folder you will see all the different firmwarebundles from either the 2g or the 3g model.

What you need is a folder called iPhone1,1_2.2.1_5H11.bundle
So what you can do is copy the 2.2 folder to iPhone1,1_2.2.1_5H11.bundle for the 2g model.

Just be sure that you have the folder iPhone1,1_2.2.1_5H11.bundle with something in it. (can be the same as the 2.2 version)

Restore your 2g to 2.2.1 and run the quickpwn version in your unpacked folder. And do the normal procedure with quickpwn. Quickpwn will say it needs the 2.2.1 firmware but instead you can select the 2.2 version. After that it's doing the normal jailbreaking stuff and voila. You are jailbroken and activated.

If you do not exactly know what i am telling in this manual, then please wait for the dev-team release.

I am a big fan of the dev-team, but just tried this temporary solution and it works fine.

I will give this a try right away. Still, I'm asking myself why for some folks the activation seems to survive an update to 2.2.1...

Thanks alot! I will report back once I'm done (which is in a few minutes).

My 2.2 version was made by XPWN and i could easily upgrade it to 2.2.1 and it did remain activated. But i wanted cydia back.

Worked like a charm! Thanks alot!

My only potential worry would be that during the QuickPwn operation, it might use some components from the 2.2 firmware file (since you have to select this and not the 2.2.1 file in the first step) which might be flashed to the iPhone and somehow "mix up" components from 2.2 and 2.2.1. Don't know if this is really the case, or if QuickPwn doesn't really use any components from the Apple flash files.

Anyway - nice trick! Thanks alot again!

Off course i'm not sure, but as it is a really small update i do not think that a lot of files are actually changed, but only the files for the improved features like safari.

Anyway i will do the jailbreak again after the release of the "real" quickpwn.

Me too of course.