maemo.org - Talk - View Single Post - Firmware downgrade from 1.3 to 1.2 possible

Hurrian	2012-12-07 , 11:03
Posts: 1,225 \| Thanked: 1,905 times \| Joined on Feb 2011 @ Quezon City, Philippines	#28

Originally Posted by rainisto

(And if there is ever PR upgrade it would force Nokia to lock CAL even in normal mode)...

This would break lock code functionality. Or, they could store the lock code in a file, which is arguably a lot more insecure than storing it in an obscure database no one's bothered to write a library to interface with.

Originally Posted by juiceme

I was thinking about this one day, what lead me to this was some time back somebody had a weird problem, IMEI of the device was corrupted.

IIRC the IMEI is stored on the BB5 chip, which runs completely separate from the SoC. All the SoC side of the system does is talk to the BB5 over the OMAP's SSI interface.

Something else may have been broken, but it sure isn't corruption of the IMEI.

And if the N9 is just like the N900, you could probably flash_erase /dev/mtd1 and CAL would be able to partially rebuild itself (kids, don't try this at home!)

__________________
N9 PR 1.3 Open Mode + kernel-plus for Harmattan
@kenweknot, working on Glacier for Nemo.

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