Guide to GSM error codes and their meanings (+CMS errors)

Here's a handy list outlining message service errors. These are the error codes for +CMS ERROR coupled with their human readable meanings. Now when a GSM modem barks at you you may have some idea why.

  • Error code - Meaning
  • 0-127 - GSM 04.11 Annex E-2 values
  • 128-255 - GSM 03.40 section 9.2.3.22 values
  • 300 - Device failure
  • 301 - SMS service of device reserved
  • 302 - Operation not allowed
  • 303 - Operation not supported
  • 304 - Invalid PDU mode parameter
  • 305 - Invalid text mode parameter
  • 310 - SIM not inserted
  • 311 - SIM PIN necessary
  • 312 - PH-SIM PIN necessary
  • 313 - SIM failure
  • 314 - SIM busy
  • 315 - SIM wrong
  • 320 - Memory failure
  • 321 - Invalid memory index
  • 322 - Memory full
  • 330 - SMSC (message service center) address unknown
  • 331 - No network service
  • 332 - Network timeout
  • 500 - Unknown error
  • 512 - Manufacturer specific

This 3rd party website maintains a full list.


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