Newer MTK chipsets

Serg l serg at
Wed Apr 19 11:17:58 UTC 2017

Nope there is nothing you might be interested in those sources.

I have this board based on MTK
chipset and already done very extensive search of MTK firmware leaks. Most
of those are sources are for OEM full of binary libs related to baseband.
It is still possible to deblob some of them, but so far it is even less
complete than you scored from TI.

and BTW, I have seen this repo and few more.

Operators are threatening to shut down 2G data networks, but so far there
is a huge IoT and remote control market customer base who cannot or don't
want to switch. I would think that we still have another 10 years or so.

On Wed, Apr 19, 2017 at 12:50 AM, Mychaela Falconia <
mychaela.falconia at> wrote:

> Hello FreeCalypso community,
> Someone just made a post to the OsmocomBB mailing list containing links
> to a whole bunch of firmware source leaks for newer MTK chipsets which
> supposedly support 3G/UMTS and 4G/LTE in addition to good old GSM/2G:
> I personally am too heavily invested into the Calypso to even consider
> looking at other chipsets, but as a community we do need to keep our
> eyes somewhat open.  However, I currently absolutely lack the time to
> take even a cursory look at any of the MTK source leaks linked above,
> hence I am inviting other members of our community to take that look.
> The basic question is: using these newer MTK source leaks, would it be
> possible to build a libre modem board similar to our FCDEV3B, but with
> support for 3G/UMTS and maybe even 4G/LTE in addition to GSM/2G?  Are
> these MTK sources complete enough to actually rebuild a working modem
> firmware image from them?  And what is the source vs. object mix
> situation: do any of these leaks include real C source for the
> dual-mode GSM+UMTS protocol stack and L1, or is it all in the form of
> linkable binary objects/libs?
> Another issue is the hardware platform.  It seems to me that the people
> who are currently looking at the above-linked leaks and passing them
> around are mostly hacking on Android phones, which is something I am
> totally disinterested in.  If someone manages to replace or free the
> baseband on an MTK Android phone, more power to them, but such a
> project would be totally useless to me personally, as I principally
> refuse to put an Android phone in my purse.  Instead the only kind of
> phone I desire to have in my purse is a voice-only dumbphone.
> Calypso is ideal for my needs, but the problem is that the uncaring
> network operators are threatening to shut down their GSM/2G networks
> because the total number of people in the world who actually desire
> GSM/2G is fewer than 10, and the rest of the sheeple only want 4G+.
> Thus my ideal voice-only dumbphone would support all of 2G, 3G and 4G,
> but with an inverted network search preference order: always prefer 2G
> networks when any 2G service is available, look for 3G networks only
> when there is no 2G, and connect to 4G/LTE only as a last resort when
> both 2G and 3G have been shut down - and when going into 4G/LTE mode,
> use it *only* for VoLTE and not support any LTE Internet data services,
> i.e., disable the latter as an act of protest against the mainstream
> priorities.
> In order to build something like the above, we would need a 3G/4G-capable
> modem chip that is just a modem by itself (like what you would see
> inside a USB stick modem product), as opposed to an AP+modem combo
> made for running Android.  Hence we would need to find a non-AP-combo
> modem chip from MTK (or Qualcomm MDMxxxx or whatever) with 3G/4G
> capabilities for which we could build firmware from the available
> leaked sources, *and* for which we can obtain sufficient hardware
> documentation so we can build our own board like we did with FCDEV3B.
> At this point I hand the above ideas over to the community.  On my end
> I wish to fully finish the FCDEV3B project before I will take any look
> at all at any of the newer chipsets, and it will probably be another
> 2-3 months to bring the FCDEV3B to a state which I would consider to
> be fully complete.  But in the meantime, someone else can start
> looking at possible candidates for a newer chipset.
> Hasta la Victoria, Siempre,
> Mychaela aka The Mother
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