hEX S (RB760iGS) Winbox Login failed,How to log in to the console

RouterOS General
1

How to log in to the console
My RB760 may be attacked by hackers. The L2TP account and password are not backed up. How can I export the configuration without logging into winbox? Or log in to the console.

thanks.

2

how to use UART connect to console?
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3

Can’t enter bios, can’t enter password, who can solve it???
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4

If device has been compromised, they might have disabled these services, then the only way to recover device is by netinstall, but you will lose current config though.