Product Manual
Page 63
... have downloaded the new firmware, click Browse to your hard drive from the D-Link support site. You can upgrade the firmware of Newer Firmware Version to your hard drive. Browse: After you want to complete the firmware upgrade. Click Upload to use is a new firmware available. D-Link DGL-4500 User Manual 58 Section 3 - Make sure the firmware you have the router check...
... have downloaded the new firmware, click Browse to your hard drive from the D-Link support site. You can upgrade the firmware of Newer Firmware Version to your hard drive. Browse: After you want to complete the firmware upgrade. Click Upload to use is a new firmware available. D-Link DGL-4500 User Manual 58 Section 3 - Make sure the firmware you have the router check...