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Question is what data would be lost because I done a software update and then it lost power and when I turned it on the lights started flashing the code, doesn’t the RAM only hold OS and not my saved files?
Yes data is stored on your hard drive - nothing to do with RAM Unfortunately on this model the RAM is soldered in? Important! Backup your files before sending the laptop to Dell. This page shows how to remove drive. Dell XPS 13 9300 SSD Replacement You will need another computer with either a compatible slot or an external USB case and backup software. There are several freeware backup apps on the Web.