How to Understand PSAM Card Exceptions in Q2/Q3 Series: Difference between revisions

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== Overview ==
{{Migrating|https://smartpossdk.gitbook.io/cloudpossdk/faq/card/understand-psam-card-exceptions}}
This section details the common exceptions encountered when using the SmartCardReaderDevice.open method in Q2/Q3 series devices for PSAM cards.
== Common Exception Scenarios ==
# '''No Physical SAM Card Inserted:'''
#* When attempting to open the PSAM card reader without a physical SAM card inserted, the system will throw an exception.
#* Exception Details: ''''Code:-6 com.cloudpos.DeviceException: Operation error! Error code = -1, Error message = Operation not permitted''''.
# '''Device Restart Required After PSAM Card Insertion:'''
#* Inserting a PSAM card into the terminal does not support hot plugging. Therefore, the device needs to be restarted after insertion.
#* If the device is not restarted, the PSAM card will not be recognized, leading to an exception.
#* Same exception details as above will apply in this scenario.
== Important Notes ==
* It is essential to ensure that a PSAM card is physically present in the reader before attempting to use the SmartCardReaderDevice.open method.
* Always restart the device after inserting a PSAM card to ensure proper recognition and functionality.

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