# BC127 Programming via USB

**URL:** <https://forum.sierrawireless.com/t/bc127-programming-via-usb/21583>\
**Category:** WiFi and Bluetooth Modules\
**Created:** [September 22, 2020, 7:29am UTC](https://forum.sierrawireless.com/t/bc127-programming-via-usb/21583 "2020-09-22T07:29:27Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ml.schuene](https://avatars.discourse-cdn.com/v4/letter/m/90ced4/32.png) [@ml.schuene](https://forum.sierrawireless.com/u/ml.schuene)\
**Post date:** [September 22, 2020, 7:29am UTC](https://forum.sierrawireless.com/t/bc127-programming-via-usb/21583/1 "2020-09-22T07:29:27Z")

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Hello,  
I have a BC127-HD and I am trying to get it programmed via the USB\_P, USB\_N pins by using the MelodySmart USB App but I can’t get a connection to the module.  
How can I get this work with the USB pins? Thanks

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<div class="post-metadata">

**Author:** ![mlw](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/mlw/32/3706_2.png) [@mlw](https://forum.sierrawireless.com/u/mlw)\
**Post date:** [September 22, 2020, 2:41pm UTC](https://forum.sierrawireless.com/t/bc127-programming-via-usb/21583/2 "2020-09-22T14:41:39Z")

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@ml.schuene

USB is not supported by the firmware, it was always reserved for future use but the need never arrived.

Regards

Matt