Ubuntu 16.04 not booting from USB

I tried to create a bootable USB for Ubuntu 16.04. When booting from the USB I only see a black screen with a blinking cursor though.

Here are the different attempts I've tried:

• Download the Ubuntu .iso and validate the MD5 hash
• Create partition table gpt (and msdos in another attempt) with gparted with FAT32 formatting afterwards
• First attempt was to install the downloaded .iso with unetbootin which completed correctly but the USB didn't boot, only black screen with the cursor
• Next attempt was to use dd with the command sudo dd bs=4M status=progress if=ubuntu-16.04-desktop-amd64.iso of=/dev/sdc1 But when booting now I get the same results as above

Both, unetbootin and dd, were tried with gpt and msdos partition tables and FAT32. I'm using a Thinkpad E540 with UEFI.