a/ the ddwrt stops everytime at step 14.
b/ is it possible to run openwrt (with 8MB flash) on it? how to install it?
i just know how to compile it, but im nooob with flash and im wondering if i just have to replace the linux.bin by something of Ath25 or even that one on it? https://oldwiki.archive.openwrt.org/toh/fon/fonera#step_1downloading_the_openwrt_images
Depending on how much RAM (I recall 32MB being the max supported) your particular device has you may need to do a custom build eliminating any unnecessary packages.