Motorola C139 V1.9.24 Won't Load from osmocom-bb

Christophe Devine devinechristophe at
Tue Apr 1 12:58:27 UTC 2014


It should be noted that the new bootloader is very limited (no charging, no
loading of the regular phone os). I found another tool, called "C139 FULL
SOLUTION UNLOCK AND FLASH", that successfully could flash a proper firmware
(European_Software in the archive it is version 1.0.03.E):
Nonethless this particular (trac)phone is still limited to the US bands.

On Tue, Apr 1, 2014 at 11:25 AM, Christophe Devine <
devinechristophe at> wrote:

> Hi,
> I had a similar problem with a tracfone branded c139 (ftmtool error). On
> IRC, Hoernchen mentioned an older post where the author "fixed" the
> bootloader. He also mentioned a pastebin that referenced a tool called
> mot931c. I managed to find it and could successfully reflah my tracfone's
> bootloader, which now loads osmocom-bb without issue. Here's the reuploaded
> software package:
> -cde
> On Mon, Mar 31, 2014 at 10:53 AM, Michael Spacefalcon <
> msokolov at> wrote:
>> Sylvain Munaut <246tnt at> wrote:
>> > If that doesn't yield anything you might need to
>> > dump the flash (how ? good question ... no idea what option there is
>> > without being able to load code. jtag, or chip unsoldering ?), and
>> > reverse engineer the boot loader to see what changed.
>> I have just posted flash images read out of two C139s and one C140,
>> along with an annotated disassembly of the bootloader and other
>> reverse eng notes:
>> Hopefully someone will find it helpful...
>> To the OP: in case you haven't already figured it out, you need to use
>> -m c140xor with C139 and C140 phones.  I don't know what phones would
>> -m c140 (w/o xor) be correct for, if any.  Sylvain's direction to use
>> the -c option as well (and then use *.highram.bin instead of
>> *.compalram.bin)
>> is also correct, because the images are bigger than the ~15k max one
>> can download w/o -c on this phone.
>> Also you said your C139 came with fw version "V1.9.24" - are you sure
>> it isn't V1.0.24 instead?  The imprint on those stickers is a pain to
>> read, too small...  If your fw version is actually V1.0.24, then it is
>> the exact same one I have just dumped and reverse-engineered.
>> HTH,
>> SF
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