Hello, I sended my Dell Inspiron 5547 for a repair whit Dell and when i got it back i wasn't able to use the computer. When I turn it on the screen goes black and says: "checking media".Then the screen goes black for a while and says: " no boot device found. Press any key to reboot the machine" and it never works, it's been a week and I can't use the computer. Please help, I Don't have any backups and I Don't want to lose any documents.
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