I had a long time I didn't get my hand on the RPi. I got the Emlid image burned on a 8gb micro sdcard using the dd command. I have the pi connected to a the screen using HDMI to VGI cable, but I get no display. I changed the RPi (2B and 3B), the SD card, the OS (Emlid and wheezy) and also the HDMI to VGI cable, I even tried the cable to display the screen of my laptop and worked but I don't understand why it doesn't work with the RPi.Any help will be appreciated, Thank you.
In the config.txt file you will probably need to set hdmi_force_hotplug. It's possible that the Pi doesn't recognise that it is plugged into a hdmi device due to the hdmi/vga conversion. By default it only activates the hdmi output if it recognises an hdmi connection.
The config.txt file is in the /boot partition (this is the fat32 partition) so you can edit it from Windows on the sdcard. You'll probably find the lines:
in the config.txt file. (if you don't then create them). Uncomment (remove the '#' from the beginning of the line) the line for hdmi_force_hotplug. So it looks like:
This will tell the Pi to activate the hdmi output even if nothing is connected (bypassing the detection routine).
If that still hasn't worked are you absolutely sure that your PSU is sufficient? An insufficient power supply can also be responsible for lack of hdmi output.