I have a pi sd card with raspbian on it. The version of the Raspberry Pi I am using is the Pi B 2 When I tried to boot it up with a normal power supply (micro-usb) it started to boot fine, but it got stuck on a blinking cursor after saying something about the wpa_supplicant daemon failed. Then I unplugged the pi and tried again, but this time I bent the power-supply cord near where the micro-usb end is. When I plugged it in after the wiggle, it booted fine and I could log in and pull up the desktop. I don't know why this happened, so is it a problem with the power-supply or the wpa_supplicant?