How to reset the D-Link switch settings?

Question

network hardware

There is a D-Link DES-3052 switch. The previous system administrator set it up, during the transfer ip, username, password were received.
The bottom line is that there is nothing on this ip, there is no device when scanning the network, and in principle this switch is not there when scanning. I tried to connect via the console, it also did not work on the keyboard, shift + 3/6 does not work either. If there is any way to find out ip or reset to factory settings.
(checked by ip 10.90.90.90 does not work)

Answer 1

When connecting with the console, did you check the com-port settings?
In particular, the default baud rate is 9600, and 115200 is needed for long. Baud
rate: 115200
Data bits: 8
Parity: none
Stop bits: 1
Flow control: none

Answer 2

Resetting the password on D-Link switches