How to upgrade your iPhone 3G to 2.2 without bricking your phone or loosing the posibility to unlock it using the upcoming software solution:
Many of you asked me this days to post exactly how to upgrade your iPhone 3G to 2.2. For most of you this is not new info but for some might be usefull.
Please follow the manual as described here:
iPhone 3G – Upgrade to 2.2 without bricking your iPhone 3G
The release date of iPhone 3G 2.1 baseband unlock solution:
Dev team announced few days back that they are planning to release software unlock solution for your iPhone’s. The solution works on version 2.1 of baseband so please DO NOT UPDATE OR RESTORE YOUR iPHONE USING ORIGINAL FILES ( or directly from ITUNES ). You will loose the ability to ulock your iPhone later on.
They will release the software somewhere between 25 and the end of the year as Christmas present 
.
Here is the original post -> http://blog.iphone-dev.org/post/65126957/tis-the-season-to-be-jolly
3 responses so far ↓
1 adrian // Dec 20, 2008 at 3:25 pm
Hi,
guys, i have a big problem with universal-sim. How i can change back the network to my default network provider? adrian
2 admin // Dec 21, 2008 at 6:47 am
@adrian – what do you mean exactly ?
You could use another mobile phone and select the correct network and then use iPhone with the same simcard. admin
3 adrian // Dec 21, 2008 at 2:52 pm
I am tried this, but not work. There is no way to erase network setting on universal-sim? adrian
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