How to restore an iPhone 5S with baseband problem?

I have a problem restoring my iPhone 5S. In fact, I even tried to revive the phone repeatedly but the restoring process always stops running at updating baseband step. I even now cannot turn the phone on. Particularly, whenever I press the power button, the Apple logo shortly appears then quickly disappears and even if i put a new sim can’t get signal or network. Any suggestion is far appreciated.