Support for D-Link DIR-853

Hi I have new model of router called D-Link DIR-853.

I have found some information about it here:
I was able to access it using telnet and got some more information using console:

Looks the same as D-Link DIR-860L rev. B1 by specification so I think it is possible to install LEDE.
Also I have wrote a message to dlink and got testing version of firmware:

file -k ./DIR_853_MT7621AT_3.5.0_internal.bin
./DIR_853_MT7621AT_3.5.0_internal.bin: u-boot legacy uImage, DIR_853_MT7621AT, Linux/MIPS, OS Kernel Image (lzma), 1724041 bytes, Fri Mar 16 13:51:16 2018, Load Address: 0x80001000, Entry Point: 0x803A10C0, Header CRC: 0xBA54E809, Data CRC: 0x4D6C3FBC\012- data

How to build LEDE image using this information?

Your gist gives a 404 here when I click the link?

Here's an other link:

I have also made binwalk of firmware

Since it's squashfs, you should be able to mount it on a Linux machine, as well as looking at the ones from both the OEM DIR-860L rev. B1 and what is built by OpenWRT (the OpenWRT tool chain has the about-to-be-squashed root file system in the staging_dir directory, at least for the devices I build here).

thank you Jeff. Do you have some kind instruction how to do it? I was able to cut SquashFS from bin image and unpack it. What needs to be replaced there to allow openwrt installation and how to pack it back?

It's more that the existing image can provide insight into what you need to compile into an OpenWRT image and some of the options and configuration that might be needed. It isn't that I'd recommend "splicing" the output of the OpenWRT build process into the existing binary.

any luck with this router ?

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any update on the topic ?