Based on D-Link’s release notes for the , the latest firmware usually addresses:
Click and wait. Do not power off the router during this process (it usually takes 3–5 minutes). dir853 et a3 firmware update link
: Currently, official DD-WRT builds for the A3 revision are not fully supported in the main database, though the chipset (MT7621) is compatible. How to Update the Firmware Connect via Ethernet Based on D-Link’s release notes for the ,
to download "Factory" (first install) or "Sysupgrade" (existing OpenWrt) images. Technical Data dir853 et a3 firmware update link
Download images specifically for the D-Link DIR-853 A3