Problems after latest firmware update

[rlauzon]

You can try going back to the last version of firmware (v4.20) by typing AT*DOWNGRADE and see if works as it did before.  You could also try using AT&F to restore the settings to the defaults.

I had already tried the AT&F with no success.

But the AT*DOWNGRADE worked. 
Firmware v4.20-08/28/21 doesn't have the problem that I was experiencing.