If it doesn't work out, here's how to roll back per KNC:

For those that experience degradation with 0.97 we recommend the following steps until improved firmware is available:
 
Revert to firmware 0.95, 
Make a hard reset (see manual)
Ensure poolsettings are correct.
Apply patch “enableallcores” found on the support page.
Restart CGMiner
 
Please also check the following:
Pool address and ports correct in mining settings
Miners have a high quality internet connection that does not cut off.
 
Test the miner