Talk:XMM6180

Device for iPhone 4

Are we sure this is the baseband?

The infineon spec-sheet says "HSDPA/HSUPA capabilities of 7.2Mbps/2.9Mbps".

At the keynote Steve mentioned 5.8Mbps HSUPA. Iemit737 19:26, 21 June 2010 (UTC)

Running "string" on the new baseband files shows "XGold 618" multiple times. --Miketress 19:35, 21 June 2010 (UTC)

Ok, awesome. Thanks for finding this so quickly! Iemit737 19:50, 21 June 2010 (UTC)

Very unlikely it's the 618 after looking at the spec sheet. In case anyone is interested, | X-Gold 616 spec sheet, | X-Gold 618 spec sheet. D235j 21:43, 22 June 2010 (UTC)

Actually, it's the XMM 6180. ebl.fls says so. --oranav 21:56, 22 June 2010 (UTC)

Downgrade

Anybody knows more about the bb downgrade signatures? Or how to backup them like the shsh certs? Or how to use the replay attack here? Actually this is more related to baseband firmware and not to this iPhone 4 hardware. http

The baseband is signed with an at+nonce which is a random string generated on every bootup. Therefore, it is not possible to cache the SHSH signatures with a replay attack. I think this info either belongs on this page because it is specific to its baseband or in a special section on Baseband Firmware. Iemit737 18:18, 16 July 2010 (UTC)

Ah, that's what MuscleNerd meant with "stricter signed". I also found this example. And someone suggested to change iTunes to always send the same string. That would work, but BB wouldn't accept the response. My only idea would be to let BB generate (or store) the same string on every boot (I don't know how though). But even then we would have to backup the signatures at the time they were available. -- http 23:11, 16 July 2010 (UTC)

So how does TinyUmbrella give baseband protection ? ---Whiteshinyapple