JTAG on Vonage VDV21 worked.
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JTAG on Vonage VDV21 worked.
Last night I got this toy out of the closet and made it work with USB JTAG NT. I will keep on working on it until it is unlocked. A DLL might be needed to unlock this device.
If you just solder the pin headers and you will find the JTAG get no response. You will notice there are several resistors are missing. What I did is soldered missing resistors. (But it might be possible only needed to short the R53. Others can try to just short pin R53 to see if it is that simple). R53 is TDO and it was not connected to the JTAG port.
Other resistors are simply pull up and can use 4-10K resistor. I will try again to see if they are absolutely needed.
After created xml I was able to read the full 8M flash and the Admin password is in plane text.
I will look at how to unlock his little device. VDV21 sells quite cheap on eBay and with the caller ID display it is certainly a good toy to play.
If you just solder the pin headers and you will find the JTAG get no response. You will notice there are several resistors are missing. What I did is soldered missing resistors. (But it might be possible only needed to short the R53. Others can try to just short pin R53 to see if it is that simple). R53 is TDO and it was not connected to the JTAG port.
Other resistors are simply pull up and can use 4-10K resistor. I will try again to see if they are absolutely needed.
After created xml I was able to read the full 8M flash and the Admin password is in plane text.
I will look at how to unlock his little device. VDV21 sells quite cheap on eBay and with the caller ID display it is certainly a good toy to play.
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- Junior Member
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- Joined: Mon Jul 18, 2005 9:33 pm
You mean JTAG it or unlock it?
If you download 0.32 released yesterday, it has the VDV21.xml. The only thing you need to do is to solder the resistors that are missing to be able to JTAG it.
I am doing the dll and so far I can remove the keys and reset the Admin password. With serial port you can set the SIP user account. I will do a little more testing before I switch to another target.SB5101u will mostly be the next target.
If you download 0.32 released yesterday, it has the VDV21.xml. The only thing you need to do is to solder the resistors that are missing to be able to JTAG it.
I am doing the dll and so far I can remove the keys and reset the Admin password. With serial port you can set the SIP user account. I will do a little more testing before I switch to another target.SB5101u will mostly be the next target.
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Finally I can enable both port of this device.
The current method is similar to VT2X42. Use JTAG to erase hash and Keys (both factory and dynamic non-vol).
Use serial port to add user id and password. The TFTP method does not work yet.
This device now have TWO port with call ID. A very nice toy.
If anyone need it I can upload the dll for you to have a try. backup before you go ahead to modify it.
The current method is similar to VT2X42. Use JTAG to erase hash and Keys (both factory and dynamic non-vol).
Use serial port to add user id and password. The TFTP method does not work yet.
This device now have TWO port with call ID. A very nice toy.
If anyone need it I can upload the dll for you to have a try. backup before you go ahead to modify it.
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- Junior Member
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- Joined: Mon Jul 18, 2005 9:33 pm
Just upload
http://www.usbjtag.com/jtagnt/voip/vdv21.php
http://www.usbjtag.com/jtagnt/voip/vdv21.php
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So Usbbdm...are you saying that after doing this, we can login to the webgui and change our sip settings? or are you saying that we will ahve to use a serial ttl to change the sips?usbbdm wrote:So go ahead and have it JTAG backup whole flash. When ready and tell me then I will upload a dll for it to erase all the password.
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I have not made any GUI to change sip setting. (It is possible but you need to make a GUI for it).totalanni wrote:So Usbbdm...are you saying that after doing this, we can login to the webgui and change our sip settings? or are you saying that we will ahve to use a serial ttl to change the sips?
The unlock simply wipe out all the Vonage setting and never call home to upgrade the firmware.
Use serial is the way I found works well to set SIP on this device.
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Cool, i just saw that the 3 phone system they sell at walmart uses this device...usbbdm wrote:I have not made any GUI to change sip setting. (It is possible but you need to make a GUI for it).
The unlock simply wipe out all the Vonage setting and never call home to upgrade the firmware.
Use serial is the way I found works well to set SIP on this device.
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