1.How to update s/w by PC?
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1) Prepare a twisted RS232C cable(pin-2 to pin-3,pin-3 to pin-2,pin-5 to pin-5).
2) Connect your PC and receiver with twisted RS-232C cable.
3) Turn on the receiver and press "POWER" key to make it standby, the LED dot will blink.
4) Run the update tool on your PC,Slect the <Download Main S/W>,press <Open> and select the bin file,then click <Start>,upgrade will begin.
5) After finishing, the LED will display "-End"
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2.How to Enable Patch or Disable Patch?
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Main Menu-->Parental Lock-->MUTE-->999
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3.How to Edit Patch key?
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Main Menu-->STB Setting-->MUTE-->999