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That was for the anecdote, but recently I attempted to upgrade my OpenWRT wifi router from 18.06.02 to the latest code train: 19.07.4. As a I'm lazy as I am, I just sticked with OpenWRT web upgrade via LuCI. Not sure if I was right , ... I don't know why and how but the upgrade failed and my wifi router got "bricked". 
After a lot of googling and reading, i concluded that I had only one solution: restore from factory and re-install OpenWRT 19.07.04 installation by hand. You have guess the rest of the article, the factory-reset procedure required requires a TFTP server.
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But before that, I had to solder an USB - UART module as described here. |
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