Depending on your needs, you can choose between official or third-party firmware: Best for standard home use.
Installing firmware for the wrong revision will "brick" (permanently disable) your device. 2. Download Sources proshivki dlia dir 300 skachat
Follow these steps to update through the web interface (the safest method): D-Link DIR-300 rev A/ru - DD-WRT Wiki Depending on your needs, you can choose between