Tag Archives: Downgrade

[Pre] Baseband Downgrade Tool For Rebel SIM Unlock

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The proxy unlock seller of the Rebel SIM has just released a tool to downgrade the Palm Pre’s baseband to re-allow proxy SIM unlocking with their Rebel SIM. Find the manual here.

As we don’t have exact information about how the Rebel SIM works we suspect it’s based on the same background as the iPhone proxy SIM’s.

As there are serious security and legality implications concerning using proxy SIM unlocked devices on networks, you’d better stop by here to read what the iPhone Dev Team found out about proxy SIMs.

[iPhone] Baseband Downgrading Possible on 3G

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We’ve recently reported that exploits can be applied to the baseband bootloader 5.8 to install any bootloader. Now a working exploit has been released via Cydia.

As we have not tested this program we strongly recommend not to try this for two reasons: first it seems this package is in violation of Apple’s copyright, as it distributes a bootloader and second the script seems to have issues. In quite a few cases downgrading did not work, although everything seems to have applied properly. Don’t use untested exploits. Sideeffects and damaged basebands might be the result.