Wetek Core configuration files for Logitech Harmony 880 remote (and likely newer models)
Copy the .conf and .kl files to the Core's Download folder (/storage/sdcard0/Download)
Telnet to Core and make system partition writeable:
telnet WetekCore.local
mount -o remount,rw /system
Backup original configuration
cp /system/etc/remote.conf /system/etc/remote.conf.org
cp /system/usr/keylayout/Vendor_0001_Product_0001.kl /system/usr/keylayout/Vendor_0001_Product_0001.kl.org
Set new configuration:
cp /storage/sdcard0/Download/remote.conf /system/etc/remote.conf
cp /storage/sdcard0/Download/Vendor_0001_Product_0001.kl /system/usr/keylayout/Vendor_0001_Product_0001.kl
Revert system partition to read only:
mount -o remount,ro /system
Reboot Core