I'm new and prepare to install OpenWrt on my COMFAST CF-E5

I'm new and prepare to install OpenWRT on my COMFAST CF-E5
Now I load openwrt-19.07.6-ath79-generic-comfast_cf-e5-squashfs-sysupgrade and plan to upgrade this on my Comfast CF-E5.
I would like to ask about problem after upgrade to OpenWRT, because I'd read on forum on WAN WLAN and LTE not work after upgrade.
Best regards,

Any luck with this?

that is one of the easier device to install openwrt