Frozen in boot mode

Hello,
Yes, it looks good, there is one other point I forget to ask you to check
Can you do same capture as this one ?
"C:\Program Files\Hercules\HSM Series\sdk\"

Can you also confirm that the message you have when your Start Stream Control is only  " No device found" ?
You do not have other messages before?

@Oliver yes, the only message i get is no device found.

My point of view is that there is a mismatch between the drivers and the application version
To confirm that I need you to do a double check,

Even if the S200 is not detected, you can click on the top right settings icon and get access to more information

Can you do the same capture?

If it's not the same , you have 2 options:
Quit Stream Control ( right click on the icon on the task bar )
Download this drivers version
https://ts.hercules.com/download/pub/webupdate/STREAMING/STREAMCONTROL/2026_HSM_2_RC1.exe
And Install them, maybe you will ask to restart, please do it when it ask
Then relauch Stream Control

Otherwise:
- Unplug your Stream 200
- Go in Windows Add remove program -> Uninstall "HSM Series drivers"
- Go in Windows Add remove program -> Uninstall "Hercules Stream Control"

- restart your computer

- Download latest version 2.4.10 here
https://ts.hercules.com/download/pub/webupdate/STREAMING/STREAMCONTROL/Hercules_Stream_Control_v2.4.10.exe
Plug your Stream 200

Install Stream Control 2.4.10  maybe you will ask to restart, please do it when it ask

Hello @OLIVIER

I double-checked the versions. Stream Control shows Software 2.4.10 and HSM Series Drivers 01.53, so the application and driver versions appear to match.

I also checked Device Manager: Hercules Stream 200 XLR Control and DFU both show “This device is working properly”. When I manually start boot mode, the Hercules Stream 200 XLR BOOTLOADER also shows “This device is working properly”.

However, Stream Control still only displays “No device found” and does not offer the forced firmware update. No other error message appears.

The manual firmware installer completed firmware 2.39 and restarted the device, but it still freezes on the Stream 200 XLR Pro Audio Controller logo.

Hello @Olivier,

I checked the currently installed file again.

Path:
C:\Program Files\Hercules\HSM Series\sdk\hsm_api_core_x64.dll

LastWriteTime:
09/06/2026 07:06:56

File version:
1.53.0.0

So the current DLL now has the same date and version as the one you mentioned. However, Stream Control still displays “No device found”, even though Windows recognizes the Stream 200 XLR Control, DFU and Bootloader devices correctly.

The Bootloader also shows “This device is working properly”, but Stream Control still does not offer a firmware update.

Hello Olivier,

yes, I already tried exactly these steps:

• Closed Stream Control completely
• Unplugged the Stream 200 XLR
• Held the power button on the back
• Reconnected the device while holding the button
• Restarted Stream Control

The Stream 200 XLR BOOTLOADER is then detected correctly in Windows Device Manager and shows “This device is working properly”.

However, Stream Control still only shows “No device found” and does not offer the firmware update to version 2.39.

The current hsm_api_core_x64.dll is also dated 09/06/2026 and has version 1.53.0.0

Hi, you solved?

Hi Oliver,

I followed all the steps, but the Stream 200 is still stuck in the boot menu. All I can see on the display is “Stream200XLR”.

Unfortunately, your suggestion to update the firmware didn’t work either.

The only thing I find strange is that the “BOOTLOADER” entry is not present in my Device Manager.

I’ve attached screenshots for reference.

How do I send pictures?

What kind of Windows error do you get, or is there no error at all?

There are no Windows errors at all. The device simply gets stuck.

• Firmware update → freezes
• Tested on two other PCs → freezes
• Changed the USB cable → freezes
• The software and everything required on the PC works correctly.

The device screen suddenly turned off during normal operation. This had happened several times before. Usually, unplugging and reconnecting the USB cable fixed it.

This time, after unplugging and reconnecting the USB cable, the device got stuck on the startup screen.

I also tried the firmware update procedure by holding down the power button while unplugging/reconnecting the USB cable. The screen starts up, but then the device freezes again and does not continue.

Could it be that the power-saving mode is active for your USB devices? You might want to check that in Device Manager. It is quite possible that this setting gets re-enabled after a Windows update, so you have to disable it manually again; this is a common occurrence after Windows updates.

Hi Oliver,

I have an important update and would like to correct one point from my previous message.

On one of the PCs I initially tested, I had forgotten that the Hercules software and HSM drivers were not installed. I have now tested the Stream 200 XLR again on my Gaming PC with the correct software installed — and the device works normally there.

So the Stream 200 XLR itself is apparently still functional.

We then completely cleaned my Streaming PC:

• Uninstalled Hercules Stream Control

• Uninstalled the HSM driver package

• Removed all remaining Hercules/HSM devices

• Also removed an old VB-Audio Virtual Cable installation

• Restarted Windows

• Checked Device Manager for remaining Hercules/HSM entries

• Reinstalled Hercules Stream Control 2.4.10 from scratch

• Connected the Stream 200 XLR only after the clean installation

• Tested different USB ports, including a USB port directly on the motherboard

Unfortunately, the result on the Streaming PC is always the same:

The Stream 200 XLR remains stuck on the "Stream200XLR" startup screen and does not boot any further.

There is still no Windows error message.

The interesting part is that when I connect the same Stream 200 XLR to my Gaming PC, it boots and works normally.

So it now seems that there is a driver/USB/software issue specifically on the Streaming PC.

Do you have any idea what could cause this or what we should check next?

Best regards

Hi Oliver,

thank you for the suggestion. I checked the USB power-saving settings in Device Manager.

For all USB Root Hubs, the option “Allow the computer to turn off this device to save power” is already disabled, so USB power saving does not appear to be the cause.

I also have an important update and would like to correct one point from my previous message:

On one of the PCs I initially tested, I had forgotten that the Hercules software and HSM drivers were not installed. I have now tested the Stream 200 XLR again on my Gaming PC with the correct software installed — and the device works normally there.

So the Stream 200 XLR itself is apparently still functional.

We then completely cleaned my Streaming PC:

• Uninstalled Hercules Stream Control

• Uninstalled the HSM driver package

• Removed all remaining Hercules/HSM devices

• Removed an old VB-Audio Virtual Cable installation

• Restarted Windows

• Checked Device Manager for remaining Hercules/HSM entries

• Reinstalled Hercules Stream Control 2.4.10 from scratch

• Connected the Stream 200 XLR after the clean installation

• Tested different USB ports, including ports directly on the motherboard

• Checked the USB power-saving settings — power saving is already disabled on all USB Root Hubs

Unfortunately, the result on the Streaming PC is always the same:

The Stream 200 XLR remains stuck on the “Stream200XLR” startup screen and does not boot any further.

There is no Windows error message at any point.

The interesting part is that the exact same Stream 200 XLR boots and works normally when connected to my Gaming PC.

So it now seems that there may be a USB, driver or Windows-related issue specifically on the Streaming PC.

Do you have any idea what else we could check or compare between the two PCs?

Best regards

Hi Baumi,

I have done a lot of further troubleshooting and I think we now have some very useful information. I would like to give you a complete summary of everything we have tested so far.

Original problem

The display of my Stream 200 XLR suddenly went black during normal operation. This had happened a few times before, and normally disconnecting and reconnecting the USB cable solved it.

This time, after reconnecting it, the device became stuck on the “Stream200XLR” startup screen and would not boot any further.

There is no Windows error message.

Firmware recovery/update attempts using the power button and reconnecting USB will activate the display, but the process also freezes.

Important correction regarding my previous PC tests

Initially, I thought the device also failed on other PCs. However, on one of those PCs I had forgotten that the Hercules software/HSM package was not installed.

I therefore repeated the test correctly on my Gaming PC with the Hercules software installed.

The Stream 200 XLR works perfectly on the Gaming PC.

This means the hardware itself is apparently functional and the problem seems to be specific to my Streaming PC.

Complete cleanup on the Streaming PC

We performed a complete cleanup:

• Uninstalled Hercules Stream Control

• Uninstalled the complete HSM driver package

• Removed remaining Hercules/HSM devices

• Removed an old VB-Audio Virtual Cable installation

• Restarted Windows

• Checked Device Manager for remaining Hercules/HSM entries

• Reinstalled Hercules Stream Control 2.4.10 from scratch

• Connected the Stream 200 XLR only after the clean installation

Result:

Still stuck on the “Stream200XLR” startup screen.

USB tests

We also tested:

• Different USB ports

• USB ports directly on the motherboard

• Different USB cables

• USB power-saving settings

As you suggested, I checked all USB Root Hubs in Device Manager.

“Allow the computer to turn off this device to save power” is already disabled on all relevant USB Root Hubs.

Therefore, USB power saving does not appear to be the cause.

AMD chipset drivers

The Streaming PC uses an MSI B450 TOMAHAWK (MS-7C02) motherboard.

We completely removed the existing AMD chipset package, restarted Windows, installed the current AMD chipset package and restarted the PC again.

The installation completed successfully.

Afterwards we tested the Stream 200 XLR again.

No change – still stuck on the startup screen.

Device Manager – very interesting result

Despite the Stream 200 XLR being stuck on its startup screen, Windows actually detects it correctly under:

Audio, video and game controllers → Hercules Stream 200 XLR

There is no yellow warning symbol.

The installed driver on the Streaming PC is:

Provider: Hercules
Driver date: 13/06/2023
Driver version: 5.58.0.30265
Digital signer: Microsoft Windows Hardware Compatibility Publisher

Windows also reports that the device was successfully started.

Kernel-PnP Event ID 410:

“The device … was started.”

Driver: oem8.inf
Service: HerculesStream200XLRks

However, there is one Windows warning

On the Streaming PC there is also:

Kernel-PnP Event ID 442

Windows reports that the device settings were not migrated due to a partial or ambiguous device match.

The status shown is:

0xC0000719

Interestingly, Windows subsequently still reports Event ID 410 and says that the device was started.

Hercules HSM service

We checked Windows Services.

Hercules® HSM Series Service

is:

Running
Startup type: Automatic
Log on as: Local System

So the Hercules background service is present and running normally.

Hercules Stream Control

This is where things become particularly interesting.

Windows detects the Stream 200 XLR and reports that its driver has started, and the HSM service is running.

However, when I open Hercules Stream Control, it displays:

“No device found.”

At the same time, the physical Stream 200 XLR remains frozen on the “Stream200XLR” startup screen.

Direct comparison with the working Gaming PC

We then compared the working Gaming PC with the problematic Streaming PC.

The Gaming PC uses exactly the same Hercules driver:

Provider: Hercules
Driver date: 13/06/2023
Driver version: 5.58.0.30265

The Hercules® HSM Series Service is also running and set to Automatic, exactly as on the Streaming PC.

However, there is one important difference in the Windows device events.

On the working Gaming PC there are only:

• Event 430 – device installation requested

• Event 400 – device configured

• Event 410 – device started

There is NO Event 442 warning on the working Gaming PC.

On the problematic Streaming PC there are:

• Event 430

• Event 442 – device settings were not migrated

• Event 400

• Event 410

So far, this is the first clear technical difference we have found between the working PC and the problematic PC.

Current situation

Gaming PC:
Stream 200 XLR boots normally → Windows detects it → Stream Control detects it → everything works.

Streaming PC:
Stream 200 XLR freezes on startup → Windows still detects it and starts the Hercules driver → HSM service is running → Stream Control says “No device found” → Kernel-PnP Event 442 appears.

At this point I do not want to randomly remove or change more Windows drivers because we now have a reproducible difference between the two PCs.

Could Event ID 442 / status 0xC0000719 be related to the problem, or is there another Hercules driver/device component we should specifically remove or reset?

If necessary, I can also provide screenshots from both PCs showing the Device Manager events, driver versions and service status.

Best regards
Boddy

Status 0xC0000719: In short, this means the system blocked the driver during an attempt to load or migrate it because it was classified as faulty, incompatible, or impermissible due to security features (such as Memory Integrity/HVCI).

As I suspected, this could be a Windows error; one way to test this is to uninstall the most recent update—specifically the Windows version update, not the security updates—then restart the computer and see if it works again. Error 0xC0000719 is a well-known issue in Windows. Tomorrow, I’m going to install the program in a Windows 11 container on my Linux system to test it out. Maybe I’ll find a solution.