Hi!

Im starting to play with a cisco dpc3208 cable modem. I want to install openwrt or modificated ecos fw on it.

Now i figure it out how to make a fw file downloadable to modem. It start to download but after the download the crc32 chek fail.

I need some info about the firmware header. How can i edit it. I think the crc32 value was in the header, i just need recalculate, or bypass it somehowto start the main work on the fw. I don't can edit the first part of the header, if i edit it, the modem say it's incompatibile fw.

I have SPI dump so i can recover the modem anytime, not problem if i brick the modem, my first goal to make an image  wich is downloadable for the modem and the crc check pass.