The cheapest MT7620 board I flashed

Hardware Questions and Recommendations
1

Hello, a while ago I found a generic MT7620N board for 8 USD and I flashed it with OpenWRT successfully.
Specs: Flash 8MB DDR2, Memory 64MB
OpenWRT image: openwrt-19.07.5-ramips-mt7620-zbt-wa05
Link: https://www.aliexpress.com/item/33048521688.html

I know it worked, and did reboot fine, now months later I can't get remember the IP, there is no DHCP, so I'm not sure it still works. Normally on a less cheap board I would plug the TTL to USB and check the boot loader, but as you can see on the image, the is no serial pads on that board:

Capture

It's not a great loss, but do you have any Idea on how to get it back to life somehow, I figured the MT7620 is so generic that some of you may know a trick or two.
Thanks!

2

There seems to be a button, which would suggest that https://openwrt.org/docs/guide-user/troubleshooting/failsafe_and_factory_reset should work. Aside from that, search for a serial port and read-out/ externally flash the spi-nor flash.

3

wouldn't it broadcast arp request with its own ip? connect its lan port directly to a machine and watch it by wireshark from another machine.

4

Or map an IP using the arp command, if the MAC's known..

5

Thanks to everyone who helped me, it turned out to be a simple problem, the PoE port defaults to WAN, not LAN, I had to plug a second ethernet to port 2 (in the back) to get LAN access.

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6

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