If your router is dead then have a look at this topic where another fellow GL-AR300M user saved his router and you have there all the input needed AR300M brick and..recovery attempt - #4 by bright_plastik .
If your router is dead then have a look at this topic where another fellow GL-AR300M user saved his router and you have there all the input needed AR300M brick and..recovery attempt - #4 by bright_plastik .