I'm totally on the same boat! Failed XPS 15 9550 and migrated to ThinkPad X1 5th gen. Now perfectly happy with the latter.
The XPS had failed with ridiculous reason, I try to access the BIOS/UEFI with some key while boot up. After some tries, the machine never boot again. It founds that by pushing F8 in the wrong timing/combination while booting can cause the machine to brick forever. This is beyond the expectation of how any computer should work !
The XPS had failed with ridiculous reason, I try to access the BIOS/UEFI with some key while boot up. After some tries, the machine never boot again. It founds that by pushing F8 in the wrong timing/combination while booting can cause the machine to brick forever. This is beyond the expectation of how any computer should work !
http://en.community.dell.com/support-forums/laptop/f/3518/t/...