[Replicant] GSD4e/GSD4T

[Paul van der Vlis]

Hello,

Op 03-09-15 om 01:07 schreef Denis 'GNUtoo' Carikli:
> On Wed, 02 Sep 2015 12:57:00 +0200
> Paul van der Vlis <paul at vandervlis.nl> wrote:
> 
>>> PS: Note that the galaxy nexus has a proprietary and signed
>>> bootloader, so I wonder how much time it's worth.  
>>
>> Do you know any Android phone with a free bootloader??
> Yes.
> 
> Phones that can be supported by Replicant, given enough work for it:
> * The GTA04.

An interesting phone, but not sure where to get and strange appearance.

> * The LG Optimus black. Can be found second hand real cheap.

Interesting phone! But no Replicant support?

> * The Neo900, probably not released yet.

Interesting, but expensive, big, and not released.

> Background information:
> -----------------------
> For most phones, the SOC(System on a chip) contains some (ARM)
> code burned into the chip, this code is read-only.
> This is commonly called the bootrom.
> 
> That code is executed first, it's then responsible for loading the
> bootloader from storage(microSD, flash, etc).
> 
> On most phones that bootrom verify the bootloader signature, here
> however theses 3 phones are left unlocked, so you can run whatever you
> want.
> 
> The Openmoko GTA01 and GTA02 also have no signature checking activated,
> but they're way too slow.
> 
> There is also a more recent LG phone which signing private key has
> leaked. 
> We'd need to check with the SFLC before doing anything. I also
> wonder if that private key could sign bootloaders for other LG phones.

Interesting too, thanks for your information.

Another point I find important is a good separation between the modem
and the rest of the device. The modem should not have access to the
memory and the storage of the device.

With regards,
Paul van der Vlis.



-- 
Paul van der Vlis Linux systeembeheer Groningen
https://www.vandervlis.nl/

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