MC7354 hangs on startup after firmware change

Ok so the fact you cannot see the commands being typed is because local echo is off, if you want to see them then send

ate1

The reason the unit is no doing anything is because it is in low power mode because of a PRI/firmware mis match as can be seen in

GOBIIM:1

It has the AT&T PRI file on it, it is just not using it, you should be able switch to t using something like the below.

at!entercnd="A710"
AT!GOBISETIMAGEPREF="05.05.58.00","ATT","ATT_005.026_000"

Regards

Matt