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Difference between revisions of "Talk:06.15.00"
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Why can this be installed on iPhone? I thought as of iOS4.2.1 there's a check for the bb version that must match the firmware. If a wrong (in this case higher) bb version is installed, then iOS doesn't boot. Or why does it boot now? And why can an old baseband be installed at all? Because the version number is higher and before iPhone 4 there was no certificate check? --[[User:Http|http]] 00:16, 30 November 2010 (UTC) |
Why can this be installed on iPhone? I thought as of iOS4.2.1 there's a check for the bb version that must match the firmware. If a wrong (in this case higher) bb version is installed, then iOS doesn't boot. Or why does it boot now? And why can an old baseband be installed at all? Because the version number is higher and before iPhone 4 there was no certificate check? --[[User:Http|http]] 00:16, 30 November 2010 (UTC) |
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| + | The sig check for the baseband only determines if the baseband firmware is lower than what it should correspond to the iOS firmware then it prevents a successful boot sequence. However since the 3G/3GS use the X-Gold 608 chip it can be flashed to a higher Modem Firmware. By doing so it uses the chips own programming to be exploited using the recycled AT+XAPP injection vector. This however could easily be patched. Now that I answered your question maybe you can help me with this one. Since the iPad has no lock in the baseband why is Ultrasn0w even needed? [[User:Leobruh|Leobruh]] 03:57, 30 November 2010 (UTC)! |
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Revision as of 03:57, 30 November 2010
This has to be the best AppleFail yet, being able to use this on 3G/3GS... Iemit737 01:56, 29 November 2010 (UTC)
Install check
Why can this be installed on iPhone? I thought as of iOS4.2.1 there's a check for the bb version that must match the firmware. If a wrong (in this case higher) bb version is installed, then iOS doesn't boot. Or why does it boot now? And why can an old baseband be installed at all? Because the version number is higher and before iPhone 4 there was no certificate check? --http 00:16, 30 November 2010 (UTC)
The sig check for the baseband only determines if the baseband firmware is lower than what it should correspond to the iOS firmware then it prevents a successful boot sequence. However since the 3G/3GS use the X-Gold 608 chip it can be flashed to a higher Modem Firmware. By doing so it uses the chips own programming to be exploited using the recycled AT+XAPP injection vector. This however could easily be patched. Now that I answered your question maybe you can help me with this one. Since the iPad has no lock in the baseband why is Ultrasn0w even needed? Leobruh 03:57, 30 November 2010 (UTC)!
