+CMS ERROR Codes Explained
This page explains basic terms for radio module enthusiasts and a short list of error codes encountered in modem communication.
What is CMS Error?
+CMS ERROR: <err> indicates an error related to mobile equipment or network.
CMS error codes may occur while sending or receiving SMS messages through a cellular modem. If sending/receiving error happens, the modem will notify with a “+CMS ERROR” along with a numeric code indicating the cause of the error. The CMS error codes are defined in the ETSI GSM specifications (GSM 07.05, GSM 03.40 and GSM 04.11). Below you will find a list of possible CMS errors.
CMS ERROR Code List
Below you will find a list containing definition of CMS error codes supported by GSM modems.
| Error Code | Meaning |
|---|---|
| 300 | ME failure |
| 301 | SMS ME reserved |
| 302 | Operation not allowed |
| 303 | Operation not supported |
| 304 | Invalid PDU mode |
| 305 | Invalid text mode |
| 310 | SIM not inserted |
| 311 | SIM pin necessary |
| 312 | PH SIM pin necessary |
| 313 | SIM failure |
| 314 | SIM busy |
| 315 | SIM wrong |
| 316 | SIM PUK required |
| 317 | SIM PIN2 required |
| 318 | SIM PUK2 required |
| 320 | Memory failure |
| 321 | Invalid memory index |
| 322 | Memory full |
| 330 | SMSC address unknown |
| 331 | No network |
| 332 | Network timeout |
| 500 | Unknown |
| 512 | SIM not ready |
| 513 | Message length exceeds |
| 514 | Invalid request parameters |
| 515 | ME storage failure |
| 517 | Invalid service mode |
| 528 | More message to send state error |
| 529 | MO SMS is not allow |
| 530 | GPRS is suspended |
| 531 | ME storage full |
What is CME Error?
+CME ERROR: <err> indicates an error related to mobile equipment.
CME ERROR Code List
Below you will find a list containing definition of CME error codes supported by GSM modems.
| Error | Description |
|---|---|
| 0 | Phone failure |
| 1 | No connection to phone |
| 2 | Phone adapter link reserved |
| 3 | Operation not allowed |
| 4 | Operation not supported |
| 5 | PH_SIM PIN required |
| 6 | PH_FSIM PIN required |
| 7 | PH_FSIM PUK required |
| 10 | SIM not inserted |
| 11 | SIM PIN required |
| 12 | SIM PUK required |
| 13 | SIM failure |
| 14 | SIM busy |
| 15 | SIM wrong |
| 16 | Incorrect password |
| 17 | SIM PIN2 required |
| 18 | SIM PUK2 required |
| 20 | Memory full |
| 21 | Invalid index |
| 22 | Not found |
| 23 | Memory failure |
| 24 | Text string too long |
| 25 | Invalid characters in text string |
| 26 | Dial string too long |
| 27 | Invalid characters in dial string |
| 30 | No network service |
| 31 | Network timeout |
| 32 | Network not allowed, emergency calls only |
| 40 | Network personalization PIN required |
| 41 | Network personalization PUK required |
| 42 | Network subset personalization PIN required |
| 43 | Network subset personalization PUK required |
| 44 | Service provider personalization PIN required |
| 45 | Service provider personalization PUK required |
| 46 | Corporate personalization PIN required |
| 47 | Corporate personalization PUK required |
| 48 | PH-SIM PUK required |
| 100 | Unknown error |
| 103 | Illegal MS |
| 106 | Illegal ME |
| 107 | GPRS services not allowed |
| 111 | PLMN not allowed |
| 112 | Location area not allowed |
| 113 | Roaming not allowed in this location area |
| 126 | Operation temporary not allowed |
| 132 | Service operation not supported |
| 133 | Requested service option not subscribed |
| 134 | Service option temporary out of order |
| 148 | Unspecified GPRS error |
| 149 | PDP authentication failure |
| 150 | Invalid mobile class |
| 256 | Operation temporarily not allowed |
| 257 | Call barred |
| 258 | Phone is busy |
| 259 | User abort |
| 260 | Invalid dial string |
| 261 | SS not executed |
| 262 | SIM Blocked |
| 263 | Invalid block |
| 772 | SIM powered down |
Typical questions regarding CMS Errors:
What is CMS error 350?
CMS Error 350 means that the message was rejected by a cellular operator. Possible reasons:
- destination phone number is invalid
- no credits on prepaid SIM card
- cellular operator has blocked a SIM card
What is CMS error 500?
This error is often caused by the SIM card. Please make sure that it is: activated and have SMS service enabled.
