When I updated my DSL modem's firmware, a message appeared 'do not switch off the modem during update, it may be permanently damaged'.
However if you did nothing to cause the crash, then D-Link is responsible. You might try contacting them. Start nice as you explain what happened.
Then ask if they can solve the problem they caused by telling you about any hidden reset method. It may restore the original driver.
Or ask if they can solve the problem they caused by helping you install a barebones substitute driver. This assumes you know how (because I don't).
Those 4 pins in the middle could be how to get direct connection to flash memory.
To download a driver you'll need to access the internet using your computer's telephone port and dialup method. Your internet provider may allow you a way to do this.