Subj : Re: My next project
To   : poindexter FORTRAN
From : Tracker1
Date : Mon Oct 04 2021 05:46 am

On 9/23/2021 7:24 AM, poindexter FORTRAN wrote:
> I'm trying to get OpenWRT onto my Linksys EA7500. It doesn't recognize the
> OpenWRT firmware as a valid image, and apparently you can TFTP the image to
> it if you connect a serial cable to the headers on the board.
> 
> I bought a USB to serial cable with separate leads, but misread the
> instructions. The router has a 3.3v ttl serial and I plugged a 5v serial
> lead into it.
> 
> I looked around and found a proper TTL cable, and I'm trying with it.
> 
> Now, when I try to get any output from the serial port, I get nothing. I may
> have fried the serial port (or I'm missing something). It's a shame, but
> it's a perfectly usable router with the stock firmware.
> 
> One nice thing about certain Linksys routers is that they have dual
> firmware. If it fails to boot three times, it'll fall back to the secondary
> firmware image. Keep a stock image on one side, OpenWRT on the other and you
> can switch back and forth by powering it up and down 3 times before it fully
> boots.

Not familiar with your specific device, but as far as I know, many 
modern routers will not even load unsigned firmware anymore (FCC).

You may be better off using pfsense or openwrt on your own hardware 
(non-router), even an rpi, and using a dedicated AP device for wifi.

Using ubiquity edgemax router and separate ap here.
-- 
Michael J. Ryan - tracker1@roughneckbbs.com

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