Hi @lcard,
Can you please help to check USB composition by command
at+kusbcomp?
If at+kusbcomp=2 please change it to at+kusbcomp=0. New configuration will only be activated after the module reboots (at+cfun=1,1). Then try to upgrade again
In theory, there’s no way to force the tool to use USB2 for upgrading. However, there’s a topic suggest a workaround to do it. If the above doesn’t work you can take a look this for more detail
Please share any concerns you have and tick Solution if your problem is solved
Thanks