Couldn't get connectivity to Motorolla c118 on writing osmocombb

baymax Robo baymax254 at gmail.com
Thu Jun 1 06:57:17 UTC 2017


Hi,

Thanks for replying back.

I am not using virtualized environment. No success with minicom test. What
exactly do you mean by jack is being plugged on the whole length, i didn't
get it.

On Thu, Jun 1, 2017 at 11:16 AM, Anton Gorbachev <antgorka at gmail.com> wrote:

> Hi,
>
> Are you sure the jack is being plugged on the whole length?
> Did you get success with minicom test?
> I would recommend you to disassemble phone and check whether the jack
> plugged an the whole length.
> Do you use virtualized OS or normal? If virtualized, try to play with the
> settings.
>
> KR,
> Anton
>
> 2017-06-01 7:30 GMT+03:00 baymax Robo <baymax254 at gmail.com>:
>
>> Hi,
>>
>> I am trying to write osmocombb to Motorolla c118 phone by following the
>> given [1] guide.I have successfully compiled firmware binaries but having
>> issues while writing them to phone.
>>
>> I connected motorolla c118 via USB Serial To RS232 TTL to 2.5mm audio
>> jack, using the given guide [2]
>>
>> When I run this command
>>
>> $ dmesg | grep tty
>>
>> I get the following output
>>
>> [    0.000000] console [tty0] enabled
>> [   14.946936] usb 3-6: pl2303 converter now attached to ttyUSB0
>> [  973.747957] pl2303 ttyUSB0: pl2303 converter now disconnected from
>> ttyUSB0
>> [ 1484.595816] usb 3-6: pl2303 converter now attached to ttyUSB0
>> [ 1845.344494] pl2303 ttyUSB0: pl2303 converter now disconnected from
>> ttyUSB0
>> [ 2643.566407] usb 3-6: pl2303 converter now attached to ttyUSB1
>>
>> And on running this
>>
>> $ sudo cu -l /dev/ttyUSB1 -s 115200
>>
>> I get a connected message but no further progress is done. When i press
>> Power button briefly, no activity is shown. I have tried with two phones
>> but no success on any. I have checked the connectivity between headphone
>> jack and USB serial chip via voltmeter, it is fine as well. Also tried by
>> doing Master reset on phone but no use. What can be issue and how can i fix
>> it. ?
>>
>> Kindly ignore any mistakes, i am new to this domain, couldn't find much
>> help on google as well :(
>>
>> [1]
>> https://osmocom.org/projects/baseband/wiki/Software_Getting_Started
>> https://osmocom.org/projects/baseband/wiki/Osmocon
>>
>> [2]
>> http://www.linuxx.eu/2014/09/osmocombb-hardware-and-software-setup.html
>>
>> [2]
>>
>>
>
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