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Richard, Computer Support Specialist
Category: Computer
Satisfied Customers: 44600
Experience:  Over 15 years of consulting to the IT industry
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Hi I have a samsung all in one series 7. Had an excel spreadsheet

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I have a samsung all in one series 7. Had an excel spreadsheet open. Left it for a while. Went back to use it only the mouse worked. Then screen went blank and now shows a sign stating check signal cable hdmi. As its an all in one and wireless I don't use the hemisphere ports. Can you help please?
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Can you disconnect the charger and hold the power button down for 30 seconds, then release.

Then connect the charger and try to turn it on.

Tell me please if it will now start.

Thank you
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