Instructions
Remove cordless phones, third party PS3 controllers and other wireless devices near the PS3 if the guitar will not synchronize to the PS3. Wireless devices run a similar frequency and cause the PS3 to not "see" the guitar.
Inspect the USB cords plugged into the system if any part is not working. if there are any loose connections, the instruments will not work.
Replace the drum set's batteries if the drums are not working. The drums require AA batteries to work.
Re-download songs if the game crashes while trying to play them. Only part of the original file was downloaded, causing the game to crash because it cannot read the entire file.