How to flash Asus RT-G32 Rev. A via UART?

Question

network hardware

After the Reset, the Web panel stopped working through the button and the LAN ports do not always work, most often they do not work, and if they work, it takes 30 seconds and does not have time to reflash via ASUS firmware Rescue or Tftp.
When connected via UART, it writes like this - it feels like it went to loopboot
https://pastebin.com/Ay31UX2z
Here's how it's done via telnet https://blog.babara.ru/otkat-asus-rt-g32-na-standa. ..
I don’t understand how to upload the file to the router and run the firmware