Sagem Fast 2604 upgrade from Barrier Breaker r37269

Hi community,
I would like to use a new version of openwrt with lua in the Sagem Fast 2604 https://openwrt.org/toh/sagem/fast2604 16Mb ram 4Mb Flash.

I installed openwrt Barrier Breaker r37269 in the device a few years ago, but I never used (i was too young xdd). I thought that upgrade procedure consist on:

  1. the firmware download
  2. run sysupgrade -v /tmp/filename-of-downloaded-sysupgrade.bin
    or mtd -r write /tmp/openwrt-ar71xx-generic-wzr-hp-ag300h-squashfs-sysupgrade.bin firmware

The router does not have a configured Internet connection and want no configure it before the update; So I downloaded into my computer the last rom from here:
https://downloads.openwrt.org/releases/18.06.0/targets/brcm63xx/generic/

Next, I began to copy the firmware from pc to router through the ehernet cable with: scp <firmware_version> root@192.168.1.1:/tmp

But it hangs. It hangs because there is not enough memory for store the firmware, (there is 16Mb, enough in theory. Perhaps was on first time not correct flashed, with a false hw version and runs a false memory map)

So I tried unsuccessfully the next procedure:
On your Linux PC run:
nc -q0 192.168.1.1 1234 < openwrt-ar71xx-tl-wr1043nd-v1-squashfs-sysupgrade.bin

On the router run:
nc -l -p 1234 | mtd write - firmware

Conclusion: I can't find a way to upgrade the router.

Please, any so kind to help me?

Thans in advance

Try a smaller snapshot image ( doesn't have luci obviosly )

https://downloads.openwrt.org/snapshots/targets

WARNING
https://openwrt.org/supported_devices/432_warning

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