https://dlink.ua/ru/support/device/?id=1383 (Firmware tab)
: Never update firmware over Wi-Fi. A dropped signal during the process can "brick" the device. Connect your PC directly to the router with an Ethernet cable. dlink dsl2750u v2 latest firmware update link
Third-party support (like OpenWrt) has largely ended due to the device's low RAM (32MB) and flash memory (4MB). Performance Under Load: https://dlink
Provides an extensive directory of firmware for revisions including Rev.C, Rev.U2, and Rev.U3 at the D-Link FTP Server D-Link Australia: Provides specific builds for Rev.A at D-Link Australia Support Step 3: Installation Process Use a Wired Connection: dlink dsl2750u v2 latest firmware update link