I just tried install in Ubuntu 15.04 on my new XPS 15 and it turned into a brick--can't even get into BIOS. Nor can I boot from USB because the interwebs told

I just tried install in Ubuntu 15.04 on my new XPS 15 and it turned into a brick--can't even get into BIOS. Nor can I boot from USB because the interwebs told me I needed to disable them to get them working again--somehow they were disabled during the install process. Hopefully, I can return and get an inspiron or HP.