BC127 FW 7.1 HD Connect/Boot Loop - Device reboots upon connect


#1

Hello.

I recently upgraded my BC127-HD (Which was originally loaded with 6.1.5 HD of Melody) to the 7.1 HD FW release.

And now I’m unable to connect to it over bluetooth as it connects, spits out a bunch of OPEN_ERROR HFPs over the UART link and then reboots. However once I downgrade back to 6.1.5 HD, I’m able to reconnect no sweat. Another thing is, I suppose BC127-HD modules can’t be loaded with standard versions (ala BC127-HD can’t be loaded with Melody 7.1 Standard), thus I have not be able to test this on a non-HD version of the BC127. The host smartphone I’m using is a Samsung Galaxy S7 running Android 8 (It was running Android 7 previously, well before the Melody 7.1 HD was released)

Here’s the UART output on Melody 7.1 HD when I try to connect with my phone:

OPEN_OK 10 A2DP E4FAED77D825
ROLE_OK E4FAED77D825 S
OPEN_ERROR HFP
OPEN_ERROR HFP
OPEN_ERROR HFP
Sierra Wireless Copyright 2018
Melody Audio V7.1 HD
Build: 1526925062
Ready
CHARGING IN PROGRESS
OPEN_ERROR HFP
OPEN_ERROR HFP
OPEN_OK 13 HFP E4FAED77D825
ROLE_OK E4FAED77D825 S
CLOSE_OK 13 HFP E4FAED77D825
ROLE_OK E4FAED77D825 S
OPEN_OK 10 A2DP E4FAED77D825
ROLE_OK E4FAED77D825 S
Sierra Wireless Copyright 2018
Melody Audio V7.1 HD
Build: 1526925062
Ready
CHARGING IN PROGRESS

And now with 6.1.5 HD:

BlueCreation Copyright 2017
Melody Audio V6.1.5 HD
Build: 1496941831
Bluetooth address 20FABB09BF0F
Profiles: A2DP AVRCP HFP BLE SPP PBAP MAP
Codecs: SBC APTX-HD
OK
OPEN_ERROR HFP
OPEN_ERROR HFP
OPEN_ERROR HFP
OPEN_ERROR HFP
OPEN_ERROR HFP
OPEN_ERROR HFP
OPEN_ERROR HFP
OPEN_ERROR HFP
OPEN_OK 13 HFP E4FAED77D825
ROLE_OK E4FAED77D825 S
OPEN_OK 10 A2DP E4FAED77D825
ROLE_OK E4FAED77D825 S
OPEN_OK 11 AVRCP E4FAED77D825

Thanks,
Nick