# APTX License and/or Melody upgrade **URL:** \ **Category:** Uncategorized\ **Created:** [November 4, 2020, 6:00pm UTC](https://forum.sierrawireless.com/t/aptx-license-and-or-melody-upgrade/22021 "2020-11-04T18:00:39Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![biomurph1](https://avatars.discourse-cdn.com/v4/letter/b/76d3ee/32.png) [@biomurph1](https://forum.sierrawireless.com/u/biomurph1)\ **Post date:** [November 4, 2020, 6:00pm UTC](https://forum.sierrawireless.com/t/aptx-license-and-or-melody-upgrade/22021/1 "2020-11-04T18:00:39Z")
Hi, I want to use the APTX on my BC127 module. When I request the license information from it, it shows that I don’t have one, which is true, but where can I get one? Also, I think I’m in need of a firmware update. When I enter VERSION, I get this BlueCreation Copyright 2013 Melody Audio V5.0 RC11 Build: 20131106\_115156 Bluetooth address 20FABB08F675 Profiles: SPP HFP A2DP AVRCP PBAP MAP BLE A2DP Codecs: SBC Is it possible to upgrade the version from 5.0? How can I go about doing this? ---
**Author:** ![Donald](https://avatars.discourse-cdn.com/v4/letter/d/ac8455/32.png) [@Donald](https://forum.sierrawireless.com/u/Donald)\ **Post date:** [November 5, 2020, 9:11am UTC](https://forum.sierrawireless.com/t/aptx-license-and-or-melody-upgrade/22021/2 "2020-11-05T09:11:20Z")
Hi @biomurph1 Yes, it is. Please upgrade it to the latest BC127 firmware. You can use DFU tool to upgrade BC127 firmware. You can get it here [BC127 Firmware Upgrade Tool](https://source.sierrawireless.com/resources/airprime/software/bc127-firmware-upgrade-tool/#sthash.na8REwfc.dpbs) [BC127 Firmware](https://source.sierrawireless.com/resources/airprime/software/bc127-firmware/#sthash.glaxf9GJ.dpbs) Please help to tick “Solution” if your question is answered. ---
**Author:** ![biomurph1](https://avatars.discourse-cdn.com/v4/letter/b/76d3ee/32.png) [@biomurph1](https://forum.sierrawireless.com/u/biomurph1)\ **Post date:** [November 5, 2020, 5:17pm UTC](https://forum.sierrawireless.com/t/aptx-license-and-or-melody-upgrade/22021/3 "2020-11-05T17:17:25Z")
Thanks Donald! I have to dig up a Windows machine and dust it off. Perhaps then the APTX will ‘just work’ ? ---
**Author:** ![Donald](https://avatars.discourse-cdn.com/v4/letter/d/ac8455/32.png) [@Donald](https://forum.sierrawireless.com/u/Donald)\ **Post date:** [November 6, 2020, 4:47am UTC](https://forum.sierrawireless.com/t/aptx-license-and-or-melody-upgrade/22021/4 "2020-11-06T04:47:33Z")
Hi biomurph1 > [@biomurph1](#): > > Perhaps then the APTX will ‘just work’ ? Yes, it is. Sierra Wireless Copyright 2018 Melody Audio V7.3 Build: 1544637564 Ready CHARGER\_DISABLED LICENSE APTX=ABCD 1234 0000 FFFF 0005 CVC=CDEF 5678 0000 BBBB 0002 OK Please help to tick “Solution” if your question is answered. ---
**Author:** ![biomurph1](https://avatars.discourse-cdn.com/v4/letter/b/76d3ee/32.png) [@biomurph1](https://forum.sierrawireless.com/u/biomurph1)\ **Post date:** [November 18, 2020, 5:53pm UTC](https://forum.sierrawireless.com/t/aptx-license-and-or-melody-upgrade/22021/5 "2020-11-18T17:53:30Z")
Hi, tldr: Melody Upgrade Tool failed multiple ways I did download the BC127 Firmware Upgrade Tool and versions of the BC127 Firmware from the pages that you linked to. I am not getting the new firmware to download onto the BC127. I’m hoping this is an issue is something that can be identified. Here’s my process and result, with notes about the hardware and my OS. Using Windows 10 (spent the time to do all the Windows Updates) Downloaded the Melody Updater 5 Installed the dependancies Connected to my BC127 via UART \<\> USB\_Serial (more on my hardware below) Put the BC127 into Command Mode by sending “$$$$” Put the BC127 into DFU mode by sending it “DFU\r” as per the notes on the Firmware Upgrade Tool webpage (why this info is not in the application note is curious) Watched some ascii garbage on the serial port Disconnected serial port and launched Melody Updater Found serial port Failed to connect… Here’s a screenshot ![Screenshot 2020-11-18 084558 DFU com fail](https://us1.discourse-cdn.com/flex025/uploads/sierrawireless/original/2X/7/732be869383f8121e40cedaa8af88f8a0b6fc083.png) I went back through the process, and checked my steps. When I went to verify the response from sending “DFU\r” I got the following HEX values from the BC127 ![Screenshot 2020-11-18 083953 Terminal Output](https://us1.discourse-cdn.com/flex025/uploads/sierrawireless/original/2X/a/a975381a066f82456485ddba034915fd29aee53b.png) This is clearly not the characters 0xAA 0x52 as stated in the webpage notes. Back to the beginning, I simply put the BC127 into Command Mode and then connected via Melody Updater. Now I’m able to connect! So I select the latest firmware version, and press upload. The Melody Updater said it was putting my BC127 into DFU mode, and then it failed. Happily, it gave me an error! Error 88 “failcom\_connect” ![Screenshot 2020-11-17 181115 Melody DFU Fail](https://us1.discourse-cdn.com/flex025/uploads/sierrawireless/original/2X/f/f0142493436444d408e5bbf787230c24a8b85328.png) Thinking that this might be a version issue (since my firmware is so old that Sierra Wireless doesn’t think it’s worth wile supporting it with user manuals, even) I then tried to update to an earlier version 6.1.5. I got the same error. ![Screenshot 2020-11-18 103044 Melody DFU 615 fail](https://us1.discourse-cdn.com/flex025/uploads/sierrawireless/original/2X/0/0a3c79ffa51a01214150d98843a9f844598a8a6d.png) Do I need an earlier version of the Melody Firmware Upgrade Tool? Do I need to implement flow control on the UART? (I notice that this hardware follows the ‘sometimes ya do, sometimes ya don’t’ rule) I notice that all of the documentation is referencing something that looks like the BC127 dev module. It appears to have the BC127 interfaced with the USB port via an FTDI USB\<\>Serial IC. I’m very familiar with this setup. My hardware target BC127 is not interfaced with an FTDI chip. It is on a board with custom hardware that I designed for the Tympan [www.tympan.org](http://www.tympan.org). You can find details on the Tympan hardware design at [https://github.com/Tympan/Tympan\_Rev\_D\_Hardware](https://github.com/Tympan/Tympan_Rev_D_Hardware). The basic coms connection is the UART of the BC127 is connected to a UART of the Teensy 3.6 variant on the board, and the Teensy 3.6 variant is showing up as a COM port on the computer. I have code running on the Tympan that is acting as a Serial Port pass-through between the Computer, so anything sent from the computer on the COM port is passed directly to the BC127 and the opposite too. I’m able to communicate directly with the BC127. I can put it into Command mode, Data mode, I can read the version (as listed above) etc. I did try to download the Melody Firmware v 6.1.2, but the browser timed out. Seems that’s not supported even though it’s been linked to? Or the link is broken? UPDATE: I did get the 6.1.2 firmware to download. It just took a looooong time. Same process, same issue: Error 88 “failcom\_connect” Really hoping that there’s a simple answer to this problem. ---
**Author:** ![Donald](https://avatars.discourse-cdn.com/v4/letter/d/ac8455/32.png) [@Donald](https://forum.sierrawireless.com/u/Donald)\ **Post date:** [November 19, 2020, 4:35am UTC](https://forum.sierrawireless.com/t/aptx-license-and-or-melody-upgrade/22021/7 "2020-11-19T04:35:59Z")
Hi biomurph1 I can successfully upgrade the BC127 to Melody firmware 7.3 version. Please refer to [BC127: Error during the Firmwareupgrade with Melody DFU](https://forum.sierrawireless.com/t/bc127-error-during-the-firmwareupgrade-with-melody-dfu/12232) for your reference. ---
**Author:** ![MarcinD](https://avatars.discourse-cdn.com/v4/letter/m/cc9497/32.png) [@MarcinD](https://forum.sierrawireless.com/u/MarcinD)\ **Post date:** [April 5, 2021, 7:17am UTC](https://forum.sierrawireless.com/t/aptx-license-and-or-melody-upgrade/22021/8 "2021-04-05T07:17:45Z")
Hello, I would like to update my modules as well. It seems that the above links to the DFU tool and the Melody firmware are dead. Could you help me with that? Thanks a lot! ---
**Author:** ![Donald](https://avatars.discourse-cdn.com/v4/letter/d/ac8455/32.png) [@Donald](https://forum.sierrawireless.com/u/Donald)\ **Post date:** [April 5, 2021, 7:42am UTC](https://forum.sierrawireless.com/t/aptx-license-and-or-melody-upgrade/22021/9 "2021-04-05T07:42:13Z")
Hi @MarcinD , For your request about tool/software, you can send a post on below topic for getting help from our moderator. > [@Sierra Wireless Source website is down](https://forum.sierrawireless.com/t/sierra-wireless-source-website-is-down/23287): > > Hi everyone, Unfortunately, the Source ([source.sierrawireless.com](http://source.sierrawireless.com)) is down at the moment and will not be brought back up for several days. Would you have any urgent need in term of documentation or firmware/software, please comment below and we’ll try to get you what you need. Apologies for the inconvenience Thanks,