You should be able to disable SSD drive in BIOS. I've got a different laptop, apparently if I have "Fastboot" options turned on in BIOS, USB doesn't even boot. Another options is to load SAFE Settings in BIOS (most BIOS got it these days) and work backwards.
I used both Kali's official dd method, DVD-RW disk, and Universal USB Installer. Except for few instances when I downloaded new ISO from Kali Website using HTTP, it got corrupted. Kali website doesn't do too well resuming downloads and often download gets cut off at random %.
My final download was via torrent for 1.0.5-x64 and it worked fine with Universal USB Installer. (apparently they included Kali, so there's that good thing going).