# Power Up BC127

**URL:** <https://forum.sierrawireless.com/t/power-up-bc127/9198>\
**Category:** WiFi and Bluetooth Modules\
**Created:** [May 18, 2017, 11:57pm UTC](https://forum.sierrawireless.com/t/power-up-bc127/9198 "2017-05-18T23:57:19Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![infopop](https://avatars.discourse-cdn.com/v4/letter/i/49beb7/32.png) [@infopop](https://forum.sierrawireless.com/u/infopop)\
**Post date:** [May 18, 2017, 11:57pm UTC](https://forum.sierrawireless.com/t/power-up-bc127/9198/1 "2017-05-18T23:57:19Z")

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I have a BC 127 module hooked up with a PIC ( tx and rx) . The BC127 is powered as per configuration Fixed Voltage Application1 in the documentation.( Pins 30,31,32,33 to VCC 3.3V) . Vregen and Reset not connected.

When left a long time the module does not start at first power application. Seems to be totally locked.After a bit if power cycled again the module starts. Seems that a cap is charged and allows the module to start…

Any ideas?Thx

Emil

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**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:** [May 24, 2017, 12:46pm UTC](https://forum.sierrawireless.com/t/power-up-bc127/9198/2 "2017-05-24T12:46:38Z")

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Emil,

So do you mean if the BC127 after successfully powering up is left for a period of time it refuses to respond?

Can you send the following commands to the unit?

status  
config

Regards

Matt