Appendix B
Troubleshooting
NOTE: This document is CONFIDENTIAL and must be used exclusively for the operation of PAX programs. It may not be
duplicated, published, or disclosed without PAX prior written permission.
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B.4 GPRS Troubleshooting
“E: SIM” appears on the display at the start of processing a transaction.
There is no SIM card in the terminal.
“REGISTER” message not updated to next message while processing.
“*98* 1#” message is not updated with next message while processing.
There is an error in the terminal setup in the POS Terminal Management
system; the APN name is missing or incorrect.
Heavy traffic could be peak voice transmission time. Try again later.
“OPENNG” message is not updated with next message while processing.
Destination IP Address is incorrect.
There is an error in the POS Terminal Management System. The SSL and/or
HTTPS library files are missing.