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7.1.8 USB Memory
■ FAQ about USB memory recognition problem
[CAUTION]
Please call our nearest office or SWF CS center when continuous problems with USB occur.
1. Did you insert the USB into USB port on the side of the OP Box properly?
① The USB can be inserted in reverse when connecting it by force. Moreover, the quality of the connecting pin contact
condition on the input port is depreciated due to the frequent insert into the USB port. Check out the USB LED light
after inserting.
2. Do you use an USB extension cable or hub?
① An USB extension cable or an USB hub can reduced the standard voltage(DC +5V) of the USB port. In this case, the
USB cannot work normally.
3. Please run a virus-check.
① Some viruses interrupt the recognition of the exterior device. Use various vaccination programs to treat viruses not use
one program.
4. Recommended the use of our company's suggested USB makers
① There are many USB manufacturers. The USB is fitted with the controller that is different depending on the
manufacturers. Therefore, recognition problem can occur due to the quality differences depending on the
manufacturers. You can solve this problem by using the common manufacturer’s USB. We recommend you use the
SAMSUNG, LG, SANDISK, TRANSAND’s USB. However, an error rate of recommended makers does not
guarantee 100% flawless USB.
Q. USB device is not recognized.
4pin USB
Plug connector (User) Jack connector (User)
Connecting Pin
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