Navigate to your specific revision (e.g., /pub/Router/DIR-300/Firmware/Rev_B/ ) to find the .bin files.
Follow these steps to update through the web interface (the safest method): D-Link DIR-300 rev A/ru - DD-WRT Wiki
Supports older revisions like A1 and B1/B2/B3. Check the DD-WRT Router Database .
Before downloading any files, you check the sticker on the bottom of your router. Look for: "H/W Ver." (e.g., A1, B1, B5, B7, D1, S).
Installing firmware for the wrong revision will "brick" (permanently disable) your device. 2. Download Sources
Compatible with specific Bx revisions. See the OpenWrt Wiki for details. 3. Installation Procedure
Visit the official D-Link FTP Server or the D-Link Download Center .