Why is your Nintendo entertainment system blinking?

Answer 1

If the light's flashing and the TV's flickering, all you need to do is take out the cartridge, blow in it a few times and put it back in. If it still continues flickering, reset it a few times. Repeat the process a few times. If that doesn't work then the games broken. If none on the games work, then the NES is probably busted. They're quite easy to get if you look in the right place though if it is broken! Hope this helps!