# BC127 - SPP problem

**URL:** <https://forum.sierrawireless.com/t/bc127-spp-problem/12891>\
**Category:** WiFi and Bluetooth Modules\
**Created:** [June 14, 2018, 11:38am UTC](https://forum.sierrawireless.com/t/bc127-spp-problem/12891 "2018-06-14T11:38:42Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![DaveTech](https://avatars.discourse-cdn.com/v4/letter/d/a88e57/32.png) [@DaveTech](https://forum.sierrawireless.com/u/DaveTech)\
**Post date:** [June 14, 2018, 11:38am UTC](https://forum.sierrawireless.com/t/bc127-spp-problem/12891/1 "2018-06-14T11:38:42Z")

</div>

Hello all,

Trying to use SPP on BC127-HD.  
My goal is to have a SPP link between the BC127 and an android phone.

Melody version is 6.1.5 HD

Pairing with phone - all OK.  
A2DP works great too.  
SPP doesn’t 😕

Sending command:  
OPEN 887598A3BC45

replies with:  
PENDING  
OPEN\_ERROR SPP

I read the “Melody Audio 7 user guide” published in SIERRA’s website, and still nothing seems to work.  
What am I doing wrong?

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:** [June 15, 2018, 6:32am UTC](https://forum.sierrawireless.com/t/bc127-spp-problem/12891/2 "2018-06-15T06:32:48Z")

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Hi,

Have you got the melody classic application running on your phone? You need to have something opening the SPP profile on the phone side.

Regards

Matt

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<div class="post-metadata">

**Author:** ![DaveTech](https://avatars.discourse-cdn.com/v4/letter/d/a88e57/32.png) [@DaveTech](https://forum.sierrawireless.com/u/DaveTech)\
**Post date:** [June 17, 2018, 5:49am UTC](https://forum.sierrawireless.com/t/bc127-spp-problem/12891/3 "2018-06-17T05:49:52Z")

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Downloaded Melody classic.  
Works like magic! 😀

Why doesn’t the BC-127 work with any other Bluetooth SPP terminal application?  
(for example: [https://play.google.com/store/apps/details?id=mobi.dzs.android.BLE\_SPP\_PRO](https://play.google.com/store/apps/details?id=mobi.dzs.android.BLE_SPP_PRO))

What is special about Melody classic?

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:** [June 18, 2018, 10:42am UTC](https://forum.sierrawireless.com/t/bc127-spp-problem/12891/4 "2018-06-18T10:42:59Z")

</div>

Dave,

Nothing special, it should just be standard, I got it working with 'Bluetooth SPP manager"

[https://play.google.com/store/apps/details?id=at.rtcmanager](https://play.google.com/store/apps/details?id=at.rtcmanager)

```
restore
Sierra Wireless Copyright 2018
Melody Audio V7.1
Build: 1526921906
Ready
OPEN_OK 13 HFP EC107BFCB572
OPEN_OK 10 A2DP EC107BFCB572
ROLE_OK EC107BFCB572 S
ROLE_OK EC107BFCB572 S
ROLE_OK EC107BFCB572 S
OPEN_OK 11 AVRCP EC107BFCB572
AVRCP_PAUSE 11
OPEN_OK 15 SPP EC107BFCB572
send 15 tyjdtyyuety
OK
RECV 15 15 bgfvggd
                  hyffv

CLOSE_OK 15 SPP EC107BFCB572

```

Regards

Matt