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Rip · 11-21-2008, 12:42 PM

Here's what the Dev Team had to say:

The use of SIM-Proxies (small circuit boards/chips that sit underneath the SIM card) to provide GSM/UMTS service on your locked iPhone 3G is a method that we have always advised against. Early reports suggest that the 2.2 update disables the functionality of these devices. The techniques used were always unreliable and we are surprised that they have lasted this long.

I have an unlocked version of the 3G. As the 2.2 upgrade also upgrades the baseband I've yet to find out what impact it will have on my iPhone. Hopefully none.

11-21-2008, 12:42 PM	#3 (permalink)
Rip Join Date: Oct 2007 Location: Northern England Posts: 553 Thanks: 8 Thanked 11 Times in 11 Posts	Here's what the Dev Team had to say: The use of SIM-Proxies (small circuit boards/chips that sit underneath the SIM card) to provide GSM/UMTS service on your locked iPhone 3G is a method that we have always advised against. Early reports suggest that the 2.2 update disables the functionality of these devices. The techniques used were always unreliable and we are surprised that they have lasted this long. I have an unlocked version of the 3G. As the 2.2 upgrade also upgrades the baseband I've yet to find out what impact it will have on my iPhone. Hopefully none.