Sony PCG-GRT290ZP 매뉴얼
Why does an exclamation mark (!) appear in the Device Manager dialog box?
The exclamation mark indicates there is a problem with the specified device. Make sure all cable and power
connections are secure.
connections are secure.
You may not be using the most recent driver software provided by the PC Card manufacturer. Make sure the
necessary drivers are installed. You may need to remove the driver software, and reinstall it.
necessary drivers are installed. You may need to remove the driver software, and reinstall it.
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