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?