Thanks all for the help, apparently there is no support for Econet SoC
However I found several post with work in progress for Econet SoCs.
For now I'm following this reference guide
https://openwrt.org/docs/guide-developer/add.new.platform
And following this post which have good information about Econet
https://forum.openwrt.org/t/adding-openwrt-support-for-ancatus-a6-wifi-6-ax1800-ax3/104649/25
I'll keep looking what I can found in the wild.
Meanwhile I'm waiting for ZTE response, I'm getting fast replies
Thanks for help me out to identify the SoC
I'll keep you posted