How do you reset a coolpix Nikon s210?

Tech support says to 1-remove the battery and mem card 2-hold down the shutter button for 30 seconds (not the power button) 3-reinsert battery and turn on camera. I couldn't find these instructions anywhere, and it didn't fix my lens error problem. It may be a way to just restore default settings if you camera gets a software error, or if you just want to return to them for whatever reason.