# Unknown error in "atServerIntegrationTest" due to specific API loading

**URL:** <https://mangoh.discourse.group/t/unknown-error-in-atserverintegrationtest-due-to-specific-api-loading/10129>\
**Category:** Uncategorized\
**Created:** [September 30, 2022, 1:43am UTC](https://mangoh.discourse.group/t/unknown-error-in-atserverintegrationtest-due-to-specific-api-loading/10129 "2022-09-30T01:43:32Z")\
**Posts on this page:** 1\
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**Author:** ![takuyakobayashi](https://avatars.discourse-cdn.com/v4/letter/t/439d5e/32.png) [@takuyakobayashi](https://mangoh.discourse.group/u/takuyakobayashi)\
**Post date:** [September 30, 2022, 2:13am UTC](https://mangoh.discourse.group/t/unknown-error-in-atserverintegrationtest-due-to-specific-api-loading/10129/3 "2022-09-30T02:13:20Z")

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Thanks for your reply.  
I have UART set up to recognize custom AT commands.  
I am following [https://mangoh.discourse.group/t/at-cmds-for-mirage-talon-from-mangoh-red-board-at-port/4803/15](https://mangoh.discourse.group/t/at-cmds-for-mirage-talon-from-mangoh-red-board-at-port/4803/15).  
In this forum, /dev/ttyHS0 which is equivalent to UART can receive AT commands while app runProc is running on USB.

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