usbbdm wrote:To be honest you do not really need USB JTAG NT to unlock the sip settings. If you want permently unlock it you need USB JTAG NT to erase the admin. The setting to the device can be done via seriall port.
I have done this and ceated a dll for it (Not released it and not cleaned up code yet, since very few had interest on it). The information can be found here
http://www.usbjtag.com/jtagnt/voip/vdv21.php
The reason I believe you had clone is it was discountinued for two years and you are newly registered user.
I have tried the serial port. I believe you're the one that posted the address locations of the Admin password but on the newer formware (vdv21-3.1.2-0.3.5-r090813), reading that 3 locations gives all FFFFFFFF. Have you tried the one with the newer firmware on? I've noticed that the old firmware is on image0. Do you know any way to tell it to load image0? I've tried "Set mode" from the Main Menu and these are the options
Main Menu:
==========
b.) Boot from flash
d) Download and save to flash
g) Download and run from RAM
m) Set mode
s) Store bootloader parameters to flash
i) Re-init ethernet
r) Read memory
w) Write memory
j) Jump to arbitrary address
z) Reset
Mode Configuration Bits
=======================
0x8000 Boot
0x4000 Load-N-Go
0x1000 Switch Enet phy
0x0001 Prompt
0x0002 Verify image CRC
0x0004 Boot image 1
Enter hex value of desired features
MODE=8003: Enter new value:
Do you know what value to enter here to boot image0?