Hi, just bought myself a Pi 3. my first adventure with little computers.
Loaded Raspian, worked first time, and the next half dozen times I booted up. Then nothing, no rainbow screen, just a constant red light.
I reloaded Raspian on the 16gb SD card that came with the Pi, no joy. I tried a 32gb card, nothing, found a 64gb (pinched it out of the wife's tablet, still nothing. Stole a 2gb out of my old phone, same again. I formatted all these cards with SD Formatter each time. I then tried NOOBS, IOT, Android and anything else I could find. Surely I can't have four bad SD's. I then tried Rune Audio out of desperation and it worked first time??? I don't particularly want an audio system cause then I will have to add DAC's Amps, speakers and lord knows what else. Any ideas anyone please??
Vin