I'm having issues updating cgminer with Kano's firmware at
https://github.com/kanoi/cgminer-binaries/tree/master/AntS1I run the following command in putty:
cd /usr/bin/
wget http://kano-kun.net/AntS1/cgminer-ants1-4.2.2a-7b8fb34
chmod +x cgminer-ants1-4.2.2a-7b8fb34
mv cgminer cgminer.original
rm cgminer
ln -s cgminer-ants1-4.2.2a-7b8fb34 cgminer
I've saved and applied and even restarted the miner. It uses disk space, but doesn't update the cgminer version past 3.12.0-1 (should be updating to 4.2.2a).
Are you seeing any error messages after executing each of those commands when you're logged into your S1's terminal?