I have a brother laser printer sitting in the closet that worked great for a few years, until something went awry with its firmware and it started refusing to t

I have a brother laser printer sitting in the closet that worked great for a few years, until something went awry with its firmware and it started refusing to take print jobs regardless of connection method (tried USB, wifi, ethernet). Numerous factory resets haven’t fixed it. Have read that reflashing its firmware might fix this but last time I looked into it that requires some obscure piece of software that’s given out to technicians.