Qianbaibao pos machine failed to display pre-check-in.

The reasons why Qianbaibao pos machine can't display pre-check-in and the solutions are as follows.

1, the flow card is expired, and the network signal is not good. First of all, it is mainly to check whether the network signal of pos machine is good or not. Generally speaking, the signal of pos machine is similar to that of mobile phone. If the signal is not good, it will be displayed. If the signal is not good, it will lead to the failure of signing in. You can wait for the network signal to recover before trying to log in.

This machine has been useless for a long time. If the machine has not been used for more than three months or half a year, the payment institution will freeze the pos machine. If it is frozen, you will not be able to log in. You need to contact the customer service staff to understand and let the customer service staff apply for thawing.