Comfast CF-E5 19.07.1 WAN Interface

I need help in bringing the in-built LTE online. I updated the device with openwrt 19.07.1 and couldn't bring the WAN online. The device /dev/cdc-wdm0 is not detected. I followed https://openwrt.org/docs/guide-user/network/wan/wwan/ltedongle to bring the interface online, the device is still undetected.