Sorry for my bad English.
I would like to know how I can compile an image for this router from a local internet operator, I understand that having the mt7621 there will be no problems.
I have tried to load several images of a DLink (867, 878, 882) due to similarity of characteristics by uart and loading the image in ram the router starts and I have access to LUCI.
I would like to be able to make a custom image for this router.
I pass you the boot log.