Support for Motorola SBV5220?

spamgoods · Post by **spamgoods** » Wed Oct 29, 2008 4:32 pm

This is a new modem I have come across. It is a VoIP cable modem. Anyone with any info on this to see if it can be modded?

T_R_J · Post by **T_R_J** » Wed Feb 25, 2009 1:46 pm

Bump! Any one have any info on this modem?

T_R_J · Post by **T_R_J** » Fri Feb 27, 2009 10:52 am

I found the serial interface and there is quite a lot of info/possibilities from the console. I just wish I knew what to do with it. Console is set at 9600 same connection as the vt2142

Post by **usbbdm** » Fri Feb 27, 2009 1:12 pm

I think this can be JTAGed. If you send me the full dump I can add this support to UJmodem.

T_R_J · Post by **T_R_J** » Fri Feb 27, 2009 3:31 pm

How should I go about dumping the firmware?
I downloaded a firmware update from comcast TFTP site.
SBV5220-17.6.3-SCM-05-SHCC.NNDMN.P7.CSG
When Unzip with "7zip" it creates a file named pktc-production.prp.

It has a tnetc4401pyp chip.
Intel te28f320 flash

Seems like the SBV5120

Post by **usbbdm** » Fri Feb 27, 2009 5:10 pm

Use USB JTAG NT to dump. In order to allow UJmodem to support I need to get the cfg area. I am not sure if it is worth supporting it as nobody else is talking about this modem.

T_R_J · Post by **T_R_J** » Fri Feb 27, 2009 7:01 pm

when I try and dump it reboots due to the watch dog is there a way to get the watch dog to stop?

Post by **usbbdm** » Fri Feb 27, 2009 7:49 pm

dump small portion at a time. I do not know how to stop the watchdog yet.

T_R_J · Post by **T_R_J** » Fri Feb 27, 2009 8:42 pm

I will work on it tommorow and get you what I dump.

T_R_J · Post by **T_R_J** » Sat Feb 28, 2009 7:15 am

Where would you like me to put the file? I have it zipped and it is 3095 KB.

Post by **usbbdm** » Sat Feb 28, 2009 10:14 am

Find the email address in the software about dialogue.

T_R_J · Post by **T_R_J** » Sat Feb 28, 2009 10:33 am

I sent it to you.

T_R_J · Post by **T_R_J** » Mon Mar 02, 2009 10:27 am

I figured out how to turn off the watchdog from the serial console.
I can do a dump and it no longer resets the modem.
from the "main" menu type "setup" then type "wdtdisable" this disables the watchdog.

Post by **usbbdm** » Mon Mar 02, 2009 11:50 am

Will this disable the WD for SB5120?

T_R_J · Post by **T_R_J** » Mon Mar 02, 2009 12:27 pm

I have not tried a sb5120. Maybe some one with a sb5120 can try it.

Support for Motorola SBV5220?

Support for Motorola SBV5220?

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