Unbrick D-Link DIR 600 B5E

Hi! Googleing for days to unbrick my DIR600 B5E, no result. This is forum is my last hope. Tried many ways, but the main issue, through the serial connection I get only unreadable garbage, no idea what to write and when. Some troubleshoot tutorials cover how to do the serial unbrick but absolutely lack of details.
Can someone help me?

garbage usually means wrong baud rate.

https://openwrt.org/toh/d-link/dir-300revb#serial

Set to 57600, tried every possible baud from 9600 to 115200

play around with the ground and Tx pins, sometimes it requires a couple connects and disconnects before the text becomes clear (assuming the baud rate's correct)

I connected and disconnected maybe 100000 times :smiley: