To safely update your D-Link DSL-2750U to version ME_1.30, follow these verified steps: How to upgrade the firmware on your D-Link router
Finding the correct firmware for D-Link routers is critical because using the wrong version or region-specific file can permanently "brick" (disable) your device. Important Pre-Download Checks Verify Hardware Version: D-link Dsl-2750u V2 Firmware Me-1.30 Download %5BREPACK%5D
Download the firmware file (usually packed in a .zip archive or directly as a .bin image). To safely update your D-Link DSL-2750U to version ME_1