First of all, the gas card is inserted into the controller, according to the instructions of the gas meter to insert the card, when the IC card is inserted into the controller, the display will display: \"read the card\
Then pull out the card, so that the recharge is successful. Of course, we should note that during the reading of the card, it is forbidden to pull out the IC card, otherwise it may lead to the following problems: damage to the IC card or loss of the IC card in the purchase volume.
If you can't read, see if the card is inserted upside down, flip it over and reinsert it.