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@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@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]

Oh okay. The headphone jack is working fine, i have tested it. And helloworld isn't working. Can you tell some other method to test phones connectivity with my system.

On Thu, Jun 1, 2017 at 12:16 PM, Anton Gorbachev antgorka@gmail.com wrote:

Hi,

Check the picture https://osmocom.org/attachments/download/2091/ motorola_c123_hello_world.jpg

I mean the outer plastic case of the phone may not allow your jack to be inserted at the whole length to thoe whole even if it looks like OK. It depends on your jack case shape.

KR, Anton

2017-06-01 9:57 GMT+03:00 baymax Robo baymax254@gmail.com:

...

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@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@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]