Error code

Common Error Codes

Below is a list of common error codes that developers may encounter when working with the Android application for Smart POS devices. Understanding these error codes is essential for effective troubleshooting.

Code

Description

Error Codes in C Interface

When dealing with error codes in the C interface, it's crucial to follow the steps outlined below to identify and address issues effectively. 1. Get the Absolute Value and Convert to HEX:

Obtain the absolute value of the error code.
If the absolute value is greater than 10000, convert it to HEX as Byte0Byte1Byte2Byte3.

2. Check Hardware and Software Errors:

Examine the right three bytes (Byte1Byte2Byte3).
Byte1 represents the hardware type, Byte2 represents the hardware error, and Byte3 represents the software error.
If Byte2 is not equal to 0, it indicates a hardware error.
If Byte2 is 0 and Byte3 is not 0, it indicates a software error.

3. Error Code Resolution:

If Byte2 is not 0, refer to the Hardware Type and Hardware Error tables to identify the specific issue.
If Byte2 is 0 and Byte3 is not 0, refer to the Software Error table for resolution.

Example:

Suppose a C interface method returns 196609. Firstly, convert it to hex value (30001). In this case:

Byte1 is 3 (hardware type).
Byte2 is 00 (no hardware error).
Byte3 is 01 (software error).
As Byte2 is 0 and Byte3 is not 0, it's a software error.
Byte3, 0x01, corresponds to "Operation not permitted" in the Software Error table.

4. Special Cases:

If the absolute value is between 250 and 255, the error is from JNI source code. Refer to the common error code list above.
For other values, please send the log to WizarPOS for further investigation.

Hardware Type (Byte1) Mapping:

1: PINPAD

Hardware Error (Byte2) Mapping:

MSR

SmartCard Reader

PINPAD

Software Error (Byte3) Mapping

PreviousPermissions NextMDB Communication Protocal

Last updated 5 months ago