# HL7800 AT command interface older version documentation

**URL:** <https://forum.sierrawireless.com/t/hl7800-at-command-interface-older-version-documentation/21931>\
**Category:** Uncategorized\
**Created:** [October 26, 2020, 7:56pm UTC](https://forum.sierrawireless.com/t/hl7800-at-command-interface-older-version-documentation/21931 "2020-10-26T19:56:20Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![the67nguyen](https://avatars.discourse-cdn.com/v4/letter/t/e9c0ed/32.png) [@the67nguyen](https://forum.sierrawireless.com/u/the67nguyen)\
**Post date:** [October 26, 2020, 7:56pm UTC](https://forum.sierrawireless.com/t/hl7800-at-command-interface-older-version-documentation/21931/1 "2020-10-26T19:56:20Z")

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Hi is there anyway to find an older version of the AT command interface guide? Prior to V8 maybe.

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**Author:** ![Donald](https://avatars.discourse-cdn.com/v4/letter/d/ac8455/32.png) [@Donald](https://forum.sierrawireless.com/u/Donald)\
**Post date:** [October 27, 2020, 1:17am UTC](https://forum.sierrawireless.com/t/hl7800-at-command-interface-older-version-documentation/21931/2 "2020-10-27T01:17:01Z")

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Hi @the67nguyen

You can get it in the attachment. [AirPrime - HL78xx - AT Commands Interface Guide - Rev8.1.pdf](https://forum.sierrawireless.com/uploads/short-url/oIULRFsubgnvGLA7Akc1KecO9Qc.pdf) (1.9 MB)

Please help to tick “Solution” if your question is answered.

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**Author:** ![the67nguyen](https://avatars.discourse-cdn.com/v4/letter/t/e9c0ed/32.png) [@the67nguyen](https://forum.sierrawireless.com/u/the67nguyen)\
**Post date:** [October 27, 2020, 3:04pm UTC](https://forum.sierrawireless.com/t/hl7800-at-command-interface-older-version-documentation/21931/3 "2020-10-27T15:04:24Z")

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Thank you very much!