While trying to configure I2C in my Raspberry Pi, I issued the command sudo shutdown -r now.

Since then my Raspberry Pi is not starting up. Any help on how to start my Pi would be much appreciated.

  • 1
    Did you try unplug power adapter then plug ? Sep 10, 2013 at 11:43
  • Yes I did upnplug the power adapter... but it did not work :(
    – Soumendu
    Sep 10, 2013 at 12:08
  • 2
    Please look at elinux.org/R-Pi_Troubleshooting#Power_.2F_Start-up and compare your LEDs status with LED statuses table. Also there are many situation which can help you to understand why it's not booting. Is RPi connected screen/monitor/TV ? Sep 10, 2013 at 12:47
  • possible duplicate of Improper shutdown, now 3 flashes on boot
    – lenik
    Sep 11, 2013 at 0:39
  • Please do not sign your questions with "Thanks". Consider taking a minute to read the About Page. You should give thanks to people by upvoting their answers. If an answer helps you solve your problem please accept it. I have edited your question to improve its quality. Feel free to edit and rephrase as you like.
    – Piotr Kula
    Sep 18, 2013 at 9:29

1 Answer 1


No real info about the problem, and probably a duplicate question...

try connection the RPI to a monitor/tv and reading the gurcanozturk link to do some basic debug and add more information. Also try to read this other question for the most common SD problems.

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