Ability to change mac address using usbjtagnt

[Kristova]

Was asked by usbbdm, via email, to post this topic on the forum for further discussion, so here goes.

A question...do you know of any way to change the mac address of a receiver, similar to the CNX Nano2, using the usbjtagnt?

Or is this, as i suspect, purely a hardware feature that cannot be changed?

Thank you.

[usbbdm]

In theory it is possible. The Mac is stored in EEPROM.
USB JTAG NT can read and write EEPROM.
It is a matter to find the certain address that stores the Mac address. I have COPIED the EEPROM from Nano Premium to Nano 2 and it picked up the public server when it worked quite a while ago.

[Kristova]

Hello usbbdm, thanks for your quick reply.

I have a couple of dumps from similar machines that I will load up into usbjtagnt software and save into the separate divisions so I can look at the eeprom with ultraedit. Hopefully there will be something readable in there.

I would be pleasantly surprised if it was that easy

Regards.

[usbbdm]

Hello usbbdm, thanks for your quick reply.

I have a couple of dumps from similar machines that I will load up into usbjtagnt software and save into the separate divisions so I can look at the eeprom with ultraedit. Hopefully there will be something readable in there.

I would be pleasantly surprised if it was that easy

Regards.

Yes. Mac address is readable. You can try to change it manually. If there is no checksum then it will be quite easy.

[Kristova]

Unfortunately, the eeprom section appears empty.

Hope its OK to PM you some info to check?

Kristova.

[usbbdm]

Yes you can setupteamviewer. To clarify that I have read Nano 2 and found Mac address that.

[Kristova]

Teamviewer is setup as per pm.

Regards.