We have a merge in firmware-utils 
https://git.openwrt.org/?p=project/firmware-utils.git;a=commit;h=ba5bc4e1ae9d3e7b41d3bed39ce505670dc95078
The bump PR is at https://github.com/openwrt/openwrt/pull/13861
I won't be near my main development machine over the weekend, so I could open the PR for COVR-X1860 by the middle of next week.
@RolandoMagico Feel free to do so in the meantime, if you can find the time.
Your knowledge regarding these devices is probably way more recent than mine now 