[FS#840] AR71xx - Recent firmware won't flash (building without errors)

[LEDE Bugs]

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FS#840 - AR71xx - Recent firmware won't flash (building without errors)
User who did this - juanriccio (juanriccio)

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Hello Mathias, thanks for the suggestion.

I followed your link and tried the procedure, but when the router comes up after powering on with the Reset key pressed, apparently it doesn't take the IP addr mentioned in the procedure (192.168.0.66). Rather, it takes 192.168.1.1. The "lock" LED never gets lit - at least within a couple of minutes. And the router doesn't try to tftp any image, according to the server I installed on my PC (OpenTFTP v1.64). I kept an eye on OpenTFTP Server's window to see if there were any requests, and there weren't any. Of course, I assigned my PC an address in the 192.168.1.x subnet after finding out the router's default IP address.

You say "I'm quite sure the sysupgrade issue is already fixed in recent snapshots."
Do you mean there was a known issue with some releases that broke sysupgrade? My router is stuck on Lede r4335.

Any other suggestion will be most welcome.
Thanks again for your help!
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=840#comment3883