How to restore a Dlink Dir 320 NRU router?

Question

Iron

There is a Dlink Dir320 NRU router on the farm, which has been in the package for 3 years from the date of purchase. Altogether new. Then I needed it, and suddenly I ran into such a problem - when I try to log in to the web interface with the login and password - admin (as it says on the sticker), nothing comes out. Wrong username or password.
The following has been done:
1. Reset. Did not help.
2. An attempt to change the firmware (while holding the reset, power on and go to the web interface). It did not help - a welcome window appears, and not a suggestion to select the firmware file.
3. Trying to guess other standard passwords.
Everything was done with different timings and stuff... It didn't help.
Question - a router in the trash or is there an option?

Answer 1

Did you just press reset or did you try to hold it for 15 seconds?

Answer 2

Do a "Hard reset 30/30/30" - cleaning (NVRAM)
Press the Reset button and hold it. (If the power of the router was turned off, turn it on before pressing the button.) After 30 seconds, turn off the power without releasing the Reset button . After another 30 seconds, turn on the power, again without releasing Reset . Wait another 30 seconds and release Reset.
Be patient, it can turn out 2-3-4-5 times.
I had this and of course only on crap DLINK routers. Above correctly said, throw this shit in the trash.

Answer 3

As an option, upload the firmware via tftp in "emergency" mode. There are plenty of instructions on google.