Find the label that says "Hardware Version" or "H/W Ver."
Note: Using firmware for a different hardware version (like T1 or U1) can damage your device. firmware dlink dsl2750u h w c1 new
D-Link often released region-specific firmware. Depending on your country (Russia, India, Brazil, Southeast Asia), the "new" firmware name may differ. Valid C1 firmware filenames include: Find the label that says "Hardware Version" or "H/W Ver
