
I putted into files the routeros-arm-6.49.15.npk, and in Package list i went Restore, but nothing changed.

I putted into files the routeros-arm-6.49.15.npk, and in Package list i went Restore, but nothing changed.
Downgrade is only possible up to the factory installed version, not earlier ones, on all Mikrotik devices.
Okay, thanks a lot