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Please provide the SN code of the machine first so that we can confirm the model of the machine.
Please try clearing coms first:please unplug the power supply and HDMI cable.Please hit the pinhole of "CLR CMOS" with a pin for about 10 seconds.Ten minutes later, plug the power supply and HDMI cable, turn on the PC again. This is a video tutorial:https://mega.nz/file/XypwTISY#DV ... Z7f7qpKGP2E3nMHW8ms |
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