I have two Raspberry Pi's. One will boot up into Raspbian just fine. If I take the same SD card, network connection, keyboard and mouse and use it with the other Raspberry Pi, it boots and then hangs when it gets to the login screen.

The keyboard does not work, and I can't SSH in to it (it has a fixed IP address, so I know it's the correct IP address).

SSH and the keyboard work with the same SD card in the other Raspberry Pi.

I've tried another SD card with an earlier version of Debian for Raspberry Pi on it and the same results as above happen, so it's not the SD card or Linux distribution causing the crash.

May a firmware update help? But how do I get it booted so the firmware can be updated?

  • Does the both of the SD Cards contain the same image? Oct 21, 2012 at 3:27
  • The firmware is installed on the SD card, so you can update it on the working Raspberry Pi and then test it in the one that is not working. However, I think this may be a return job. You should also try a powered USB hub, just to be certain. Oct 21, 2012 at 8:28
  • @Haskeller no, they differ. Different cards and different versions of linux.
    – zio
    Oct 21, 2012 at 12:03
  • @AlexChamberlain I did a firmware update on the working rPi then used the same SD card to boot the second rPi and it still hangs. I agree, it's looking like a return job.
    – zio
    Oct 21, 2012 at 12:05
  • Can you post the boot logs? Oct 21, 2012 at 18:08

1 Answer 1


Check power to be sufficient. Measure voltage between TP1 and TP2. It should be 4.75 V or higher. Otherwise many upredictably things could happen. May be even this one.

  • I don't have a voltmeter to check the power level. The other raspberry pi works fine with the supply. The PSU I am using is the one from RS Components that they sell for use with the raspberry PI - it can be found here; USB PSU 5V 1.2A - RS Components
    – zio
    Oct 22, 2012 at 9:49

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