Go to Maintenance or Tools > Firmware Update . Browse for your .bin or .img file and click Upload .
DSL-2790U Support Resources provides manuals, setup guides, and software.
Access the latest firmware images (e.g., version 1.00.14) directly via the D-Link Australia Support Site .
Check D-Link's Resource Directory for specific versions like the ME (Middle East) 1.04R5B015 Beta. How to Use the Dump/Firmware File
This post covers how to find and use the "dump" or firmware files for the D-Link DSL-2790U