Unlocked 1.4 using Ziphone, can I upgrade to 2.0 firmware?

[theanimala]

I unlocked my 2G iphone 1 year ago using Ziphone and it has been working perfect. I would like to upgrade to the latest firmware but I was not sure if it is possible since I heard Ziphone changes some necessary code. Can I do this? If so, would anyone mind posting some instructions? All posts seem to be geared towards new 3G iphone unlocking...

Thanks!

[Tokiopop]

DFU restore the phone back to Apple firmware. Make sure you set the phone up as a new one. But if you want you can choose to restore your settings at a later point.

Once you've restored and updated to 2.2.1, you can use PwnageTool (http://www.iclarified.com/entry/index.php?enid=1557) or QuickPwn (http://www.iclarified.com/entry/index.php?enid=1842) to then Unlock and/or Jailbreak.

This is probably the safest method.

[theanimala]

DFU restore the phone back to Apple firmware. Make sure you set the phone up as a new one. But if you want you can choose to restore your settings at a later point.

Once you've restored and updated to 2.2.1, you can use PwnageTool (http://www.iclarified.com/entry/index.php?enid=1557) or QuickPwn (http://www.iclarified.com/entry/index.php?enid=1842) to then Unlock and/or Jailbreak.

This is probably the safest method.

Thank you for the reply. Is this considered pretty safe? I am wondering if it is worth the risk to brinking this phone. If it's a no big deal then I will go for it.

[mkrishnan]

Thank you for the reply. Is this considered pretty safe? I am wondering if it is worth the risk to brinking this phone. If it's a no big deal then I will go for it.

It's pretty safe. Lots of us have done it (I used ZiPhone for 1.1.4 also).

[Tokiopop]

I read somewhere the only real problem is when you go from 1.1.3 to something else without doing something or another. But you should be A-OK :D