# Q64/GS64 programming

**URL:** <https://forum.sierrawireless.com/t/q64-gs64-programming/5459>\
**Category:** Legacy AirPrime modules\
**Created:** [February 15, 2012, 3:21pm UTC](https://forum.sierrawireless.com/t/q64-gs64-programming/5459 "2012-02-15T15:21:55Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![mtanz0](https://avatars.discourse-cdn.com/v4/letter/m/e9c0ed/32.png) [@mtanz0](https://forum.sierrawireless.com/u/mtanz0)\
**Post date:** [February 15, 2012, 3:21pm UTC](https://forum.sierrawireless.com/t/q64-gs64-programming/5459/1 "2012-02-15T15:21:55Z")

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Hi, once upon a time the AT command set for both Q64 and GS64 were in the same document. I am having a problem with my GS64, which is supposedly architectually the same as the Q64, where the following command is not recognized.

OK  
AT+WMSN

ERROR

Currently unable to do much development as a result. I’m wondering does anyone have this problem with the Q series, and if so, it is a question of upgrading firmware, maybe to 6.5c ?

Michael.

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**Author:** ![Rex\_alex](https://avatars.discourse-cdn.com/v4/letter/r/73ab20/32.png) [@Rex\_alex](https://forum.sierrawireless.com/u/Rex_alex)\
**Post date:** [February 20, 2012, 9:17am UTC](https://forum.sierrawireless.com/t/q64-gs64-programming/5459/2 "2012-02-20T09:17:45Z")

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See the following post :  
[url][https://forum.sierrawireless.com/t/gs64-programming/5450/1](https://forum.sierrawireless.com/t/gs64-programming/5450/1)]