Firmware for the J1 revision can typically be found on regional D-Link support sites, such as D-Link Middle East & Africa or D-Link India . Common versions available for this hardware include: Wireless N ADSL2+ WI-FI Router DSL-2750U - D-Link

Includes 1 RJ-11 ADSL port, 4 Fast Ethernet LAN ports, and a built-in 802.11b/g/n wireless interface.

Supports WEP, WPA/WPA2 (Personal/Enterprise), and WPS (PBC/PIN) methods. Download Speeds: Supports ADSL2/2+ speeds up to 24 Mbps. Firmware Downloads for Version J1