How to get into the entrance guard by bus card?

Bus cards can enter the entrance guard in the following ways.

1, first put the property access card in the card reading area of the card reader, then click the read-only card number to read the data, and then save the data.

2. After saving the information, take the access card of the property, put the mobile phone in the card reader and read the card number of the mobile phone bus card. You don't need to save this step, just remember that this set of numbers framed by sector 0 and block 0 is the UID corresponding to the mobile phone bus card.

3. Open the data file saved in the first step with hexadecimal software, and then modify the framed number into the number remembered in the second step, that is, the UID of the mobile phone bus card, and save it after modification.

4. Put an IC card that can be erased repeatedly in the card reading area of the card reader, then import the data file modified in the third step, and then write the card. After writing the card successfully, take this card to the doorman and try to see if the doorman responds. Generally, access control card swiping should have sound, with recognizable beeps and unrecognizable beeps. If there is a sound, then take this card to the property and let them authorize it.