Mqu350 Software Fixed Download Page

Warning: The device will go dark for 30–60 seconds. Do not cycle power. If you lose power during a fixed download, the MQU350 is physically bricked (requires EEPROM reprogramming).

Yes. The fixed drivers are open-source or community-provided. If any website asks for a credit card or subscription, leave immediately.

To fix issues with the (specifically regarding time synchronization or missing configuration files), you need the Time Setup (often called date_time_cfg

) software. This program typically resides on the device itself but can be lost if the device is formatted. KJB Security Products 1. Download the Recovery Software

If the software is missing from your device, you can download the original drivers and configuration tools from authorized retailers: OzSpy AF-MQU350 Time Setup Driver : Direct link to download the "Time Setup" driver. MQ-U350 User Manual : Official documentation detailing the software's use. SpyGadgets.no 2. Setup and Installation Guide mqu350 software fixed download

Follow these steps to restore and fix the software functionality: Transfer the File : Copy the downloaded Time Setup

program back onto the root directory of your MQ-U350 voice recorder. Connect to PC

: Plug the recorder into your computer's USB port. Ensure the recording switch is in the position so the computer recognizes it as a drive. Run the Creator : Open the device folder and double-click the date_time_cfg : Press the

button in the software window. This automatically pulls your PC's current date and time and prepares the configuration file. Warning: The device will go dark for 30–60 seconds

: Safely eject the device. The internal lamp will blink rapidly and turn off, indicating the time setup is complete. KJB Security Products 3. Troubleshooting Common Issues Device Not Recognized

: If the recorder doesn't show up, verify it is turned off before plugging it in. Formatting Problems : If you must format the device, it be formatted as

. Other formats (like NTFS or exFAT) will cause the recorder to malfunction. Time Resetting

: The internal clock resets if the battery is fully discharged. You will need to run the Time Setup program again after charging. KJB Security Products Quick questions if you have time: Did this resolve the download issue? OzSpy AF-MQU350 USB Memory & Voice Recorder As of late 2023/early 2024, the latest stable


As of late 2023/early 2024, the latest stable firmware for the Qu series is usually Version 1.90 (check the official site for the absolute latest).


Before we dive into the download links and fixes, it is essential to understand what the MQU350 is. The MQU350 is typically a USB-to-serial bridge controller or a communication IC (Integrated Circuit) found in various hardware devices, including:

The problem is that the generic drivers provided by Windows often fail to recognize the MQU350, or the manufacturer’s CD includes outdated, unstable drivers that crash on Windows 10 or Windows 11. That is why the phrase "fixed download" has become so popular—users need a version that resolves the code 10, code 31, or device descriptor request failures.

If you were looking for a "fix" for a specific bug (e.g., mixer freezing, audio dropouts, screen glitches):

  • Corrupt USB Stick: If the update fails at 0% or immediately, try a different USB brand. Allen & Heath mixers are picky about USB drives; Sandisk Cruzers often work well.
  • Windows Drivers: If you are having trouble connecting the mixer to a PC via USB for recording, you must install the Qu Driver (found in the same download package as the firmware) on your computer.