Just fixed a weird power cycling issue on a Dell laptop with a trick I found online

Had this Dell Latitude 7490 come in last week, kept turning on for 5 seconds then shutting off. I was ready to order a new board. On a forum, someone said to disconnect the battery AND the CMOS battery, then hold the power button down for a full minute. I thought it was nonsense, but I tried it. After reconnecting everything, it booted right up and has been fine for 3 days now. Has anyone else had a weird fix like that actually work on a modern laptop?

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