I have Rpi 2 model B v1.1 for a week. I tried some cirquits with GPIO pins. One day i made a simple button cirquit. It worked well. But few minutes ago Rpi crashed, i powered it off. When i power it on, it doesn't boot. Red and Green lights were on. No video output. Processor isn't heating up
I tried more SD cards, formating SD card and rewriting NOOBS and Rasbian image. But Rpi isnt booting. S think, SD card is fine, because i tried it in friend Rpi and it works well.
Please someone help