How to replace the flow card of POS machine?

Replacing the flow card of POS machine is a relatively simple operation. First of all, you need to prepare a new flow card to ensure that it corresponds to your POS model and the data flow is sufficient. Secondly, you need to confirm whether the new flow card supports hot plugging. If yes, just insert the new flow card directly into the SIM card slot of the POS machine. If hot plug is not supported, it is necessary to power off the POS machine first, then take out the original flow card, insert a new flow card, and finally turn it on.

It is worth noting that before replacing the flow card, it is recommended that you back up the data in the original flow card. If you are using a flow card that does not support hot plug and cannot back up data temporarily, it is recommended that you replace it carefully to avoid data loss.