Cool. Yeah…running warm is normal for this DAC. Glad to hear that you are enjoying it. 
2 Likes
Yes that’s normal, the XMOS processor produces a lot of heat and it is thermally mated to the aluminum shell which acts as a heatsink.
4 Likes
If I only update xmos to v1.2, but I did’T update MCU, after that, I update to v1.3, also , I did’T update MCU due to the reason of I don’T have the st link v2, after the update, I found in gain mode only have low gain and per amp, without high gain, The volumn control for the per amp also not working
You can order a free ST Link v2 tool from Khadas Shop: https://www.khadas.com/product-page/st-link-v2-hardware-tool
2 Likes
please see the attachment for the order information of my st link v2.
Since my address is in Hong Kong, Can you help to arrange to use SF express to my Hong Kong address?
For my current situation, I didn’t install the MCU, it will affect to the gain output? Now I can see only low gain and Per amp light, High gain light is missing, per amp volume control also not function yet.
Please share your email address to me.
1 Like
please connect your Tone Board and PRESS ANY KEY
…/tone_dfu_tool --download Tone2_Pro_Firmware_V1.20_210408/Tone2_Pro_XMOS_V1.20_210408.bin
Error claiming interface 0
VID = 0x3353, PID = 0xa002
Khadas Tone2 Pro detected!
Tone DFU application started - Interface 2 claimed
Detaching device from application mode.
Waiting for device to restart and enter DFU mode…
The device has been disconnected
[i] UPGRADE ERROR (1) - check previous error messages - and try to resolve it
or submit some message to us about this issue plz!
Viveks-MacBook-Pro:~ vivek$
I’m not a techie so please help with simple and direct instructions.
Did you try running as administrator?
sudo ./upgrade_dfu.sh
Thank you for responding. As you will make out. I am completely lost. I tried running your script and used my password. But the ned result is the same. I am attaching the whole session.
Last login: Sat Oct 9 16:13:29 on ttys000
The default interactive shell is now zsh.
To update your account to use zsh, please run chsh -s /bin/zsh.
For more details, please visit Use zsh as the default shell on your Mac - Apple Support.
Viveks-MacBook-Pro:~ vivek$ sudo ./upgrade_dfu.sh
Password:
sudo: ./upgrade_dfu.sh: command not found
Viveks-MacBook-Pro:~ vivek$ /bin/bash -c “$(curl -fsSL https://dl.khadas.com/Firmware/Tone2/upgrade_dfu.sh)”
[i] Tone Board DFU upgrade (online script) - PRESS ANY KEY or Escape by Ctrl+C
/usr/local/bin/brew
Warning: git 2.33.0_1 is already installed and up-to-date.
To reinstall 2.33.0_1, run:
brew reinstall git
Warning: libusb 1.0.24 is already installed and up-to-date.
To reinstall 1.0.24, run:
brew reinstall libusb
Warning: make 4.3 is already installed and up-to-date.
To reinstall 4.3, run:
brew reinstall make
Warning: automake 1.16.5 is already installed and up-to-date.
To reinstall 1.16.5, run:
brew reinstall automake
Warning: mk-configure 0.37.0 is already installed and up-to-date.
To reinstall 0.37.0, run:
brew reinstall mk-configure
Warning: libtool 2.4.6_4 is already installed and up-to-date.
To reinstall 2.4.6_4, run:
brew reinstall libtool
Warning: pkg-config 0.29.2_3 is already installed and up-to-date.
To reinstall 0.29.2_3, run:
brew reinstall pkg-config
Warning: wget 1.21.2 is already installed and up-to-date.
To reinstall 1.21.2, run:
brew reinstall wget
-I/usr/local/Cellar/libusb/1.0.24/include/libusb-1.0
[i] please connect your Tone Board and PRESS ANY KEY
…/tone_dfu_tool --download Tone2_Pro_Firmware_V1.20_210408/Tone2_Pro_XMOS_V1.20_210408.bin
Error claiming interface 0
VID = 0x3353, PID = 0xa002
Khadas Tone2 Pro detected!
Tone DFU application started - Interface 2 claimed
Detaching device from application mode.
Waiting for device to restart and enter DFU mode…
The device has been disconnected
[i] UPGRADE ERROR (1) - check previous error messages - and try to resolve it
or submit some message to us about this issue plz!
Viveks-MacBook-Pro:~ vivek$
Thank you so much. The app just wouldn’t open on my Macbook Pro even in Admin mode and unlocked mode, firewall off. I tried everything.
But it worked like a charm on my 11 year old iMac once I pointed it to the bin file. Just a few seconds and it was done.
Hope this means I don’t have to fiddle with that StLink V2 .
Thanks again. And its a great product.
1 Like
May I know which model MBP you are using now?
Actually, still needed 
You can follow the video guidance and just skip the XMOS firmware upgrade part. Please let us know if any problem there.
Sorry for the inconvenience!
Its a MBP 13" 2018, with 4 usb C ports and 8gb Ram. Big Sur v11.6. When trying to open the DFU app it says I don’t have permission to open the app. Contact your computer or network administrator for assistance. I have unlocked the app from and set my name for read and write.
I will try running the other script on both this and the iMac and see what happens.
Thanks again
Phew. It worked perfectly on the MBP. I had tried first on the iMac but nothing happened. Strange that the 1.3 xmos update worked on the iMac but not on the MBP. And the reverse for the mcu update. iMac is running High Sierra. Go figure.
Thanks a ton. I am now a happy camper.
Thanks for the updates!
Just a follow up if all your issue including the MCU firmware upgrading got resolved?
BTW, note to upgrade both the v1.2 XMOS & MCU firmware first then upgrade to v1.3.
Good day!
1 Like
OK. Went back to v1.0. Did the xmos v1.2 then mcu .
Then again xmos v1.3.
Thanks
Hi folks. Excuse me if my question is out of date. I have Khadas Tone2, version 1.2, serial number 14A…
Is there any reason I should use the special procedure of updating firmware from version 1.1 to 1.2 ?
In any case, from now on, how can update the firmware to version 1.3 ?
Hi LorenzoMA,
You can directly upgrade from V1.2 to V1.4 version firmware.
In fact, yours is Tone2 Pro, not Tone2, please pay attention when downloading firmware and updating, do not update wrongly, otherwise the device may not be recognized.
more info about the v1.4 firmware, please check this, have fun.
1 Like
Hi @kenny , I just got a Tone2 pro _fw v1.0 (serial _11A100C1)
How can I get this MCU hardware ST-Link v2 tool ? (I lived in Taiwan)(I updated it into v1.41 firmware without MCU)
Please let me know what process should I apply for and appreciate if any link provided to me
Thank you~~~~
Hi wavewave,
Thanks , will give it a try