@DiogoSilva please download this tar:
https://sources.libreelec.tv/mirror/qca9377-firmware-aml/qca9377-firmware-aml-1.0.0-3.tar.xz
Extract it local and copy everything to your µSD in folder on your 19.4 µSD:
/storage/.config/firmware/qca9377
Or when you access the CoreELEC device by share it should be in folder COREELEC/Configfiles/firmware/qca9377
So you will have a file as example:
/storage/.config/firmware/qca9377/qwlan30.bin
When you copied all reboot and make a dmesg | paste again.