How should we do if the customer display can not show?

- Oct 08, 2018-

1. Check whether the host has been replaced, the interface may have been replaced. If it was connected to COM1, now it is connected to COM2, you can set the port in the cashier software, restart will show that it is self-test only on behalf of the guest has been powered on.

2. may be the motherboard problems, find POS machine service providers to recover maintenance treatment.

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