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In the middle of booting my Raspberry Pi, I realized I hadn't plugged in the keyboard and mouse before plugging in the power. So I plugged them in. As I plugged the second one into USB, suddenly the Pi seemed to go dormant and the TV said no signal was coming over HDMI. Now I can't get it to boot. The red light comes on and stays solid, so it seems the power supply is working well. The green light never blinks, though, making me think that the board isn't reading the SD card.

I've tried multiple things with the card, including formatting it and starting over with NOOBS, and formatting it again and flashing it with Raspbian. No luck, either way.

I've walked through the "boot problems sticky" and nothing worked.

This isn't the first time I've had trouble with this particular card and Pi. When the Raspberry Pi and the SD card with NOOBS pre-installed arrived, it got stuck on the "rainbow screen" with the red power light flashing. Re-installing NOOBS worked well in that case.

I've thought I could keep trying to put the software on the card, maybe from a different computer. But I also wonder if there is a chance the board got damaged somehow by plugging the keyboard and mouse into the USB during the boot process. Any ideas?

  • i know that it is really obvious, but you did not say, so i am asking ... did you try to boot without mouse and keyboard? – jsotola Jun 17 '18 at 0:10
  • I did. No difference. – Bryan Gentry Jun 17 '18 at 1:47
  • it is possible that the RPi had a pre-existing fault and plugging in the usb cables pushed it over the edge – jsotola Jun 17 '18 at 4:03
  • I suppose so. Any idea what may have broken and whether it's fixable? Or maybe I should just return it. – Bryan Gentry Jun 17 '18 at 12:19
  • it is impossible to guess .... could be hardware, could be firmware – jsotola Jun 17 '18 at 19:15

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