After updating to 4.6 one S3 would not hash. Maybe I missed something. After updating, reboot then save and apply freq in advanced settings unit should fire up?
Is all your base firmware also up to date?
S320140811.bin?
So no.
I would update to the most recent version, uncheck the box to keep settings, then apply cgminer using the following:
1. SSH into the S3 and login
2. Issue the following commands sequentially.
cd /usr/bin
mv cgminer cgminer.bak
wget http://ck.kolivas.org/apps/cgminer/antminer/s3/4.6.0-140908/cgminer
chmod +x cgminer
reboot