Hi I have just receive my Pi 2 this morning and built the ninja case for it, inserted the SD, hooked up screen and keyboard/mouse and excitedly plugged in the power to be met with a screen full of the colours of the rainbow.
I am new to Pi and this is my first experience of it but I can tell something is wrong! I have removed the SD and inserted it again and checked all connections but all I get is the same rainbow screen no matter how many times I boot up.
Can someone please tell me if my Pi is faulty or if it’s likely to be the SD card or what I should try to do to to get it to boot. I got the kit so using the SD that came with that.