What do the seven error codes 90-96 displayed by POS indicate when spending by credit card?

1. This is the bank's anti-cashing setting. The same credit card should not be swiped continuously on the same pos machine. If this happens, the banking system will judge that the user is illegally cashing out. There must be at least a certain time interval when using, and the interval length is different.

2. The proportion of credit cards. Please standardize the operation and use the credit card machine, and do not use the balance inquiry function.

3. The POS machine may display invalid merchants for the following reasons: the POS machine needs to communicate with UnionPay when swiping the card, or the parameters of the POS machine have not been established by the backstage host of UnionPay, and the information of the merchant does not exist in the backstage of UnionPay. The key of POS machine is lost.

4. Error code 99 indicates that the login failed and the server could not be contacted. You can check whether the network connection is normal and log in again after restarting. If you still can't sign in, you need to contact the customer service consultation of POS company. Tips: The above information is for reference only.

5.pos machine error code 48 transaction failed. Please contact the issuing bank. There may be an error in the card swiping operation. Re-swipe the card to ensure that the card swiping process and steps are correct.