Inspiron 13 5378 boot-up issues

About once a week (it's happened twice) I get 2 amber then 6 flashing white lights on boot up and the laptop appears dead. I did the diligent thing and Googled it, leading to a post that suggested that disconnecting and reconnecting the battery would solve the issue. It did, but that involves undoing many screws to get inside the case. I don't mind doing that, in principle, but it's a workaround not a fix.

Has anyone else had this problem? Should I just call Tech Support?