Downgrade Nec 3540

Is possible downgrade via .bin firmware Nec 3540 at old model 3520 or 3530?

Thanks all :slight_smile:

Iā€™m curios to know why you would want to downgrade, Iā€™m sure you have a valid reason.

No, this is not possible

I am not satisfied, i want test other firmware for burning plus support and more quality.
Nec have not realeased new firmare in 4 mounth of realease, in official site i not have found any news.

I suggest you try recommended & reliable media then.