Firmware Update & Downloads
Update your software and drivers to the latest version to get better using experience.
M15 Mobile HiFi DAC/ Amplifier
Firmware Downloads
Version：Ver9399
Update time：2022.08.05
Required system：Windows 10
Notes：Resolved the occasional compatibility issue when M15 was running Tidal and other applications on some devices
Version：Ver9277
Update time：2022.04.27
Required system：Windows 10
Note：Solved the occasional compatibility problem with M15 when used on some devices
Version：Ver9086
Update time：2022.04.15
Required System：Windows 10
Note：Solved the occasional compatibility problem with M15 when used on some devices
M12 Mobile HiFi DAC/ Amplifier
Firmware Downloads
Version：Ver9399
Update time：2022.08.05
Required system：Windows 10
Note：Resolved the occasional compatibility issue when M12 was running Tidal and other applications on some devices
Version：Ver9277
Update time：2022.04.27
Required system：Windows 10
Notes：Solved the occasional compatibility problem with M12 when used on some devices
Version：Ver8587
Update time：2021.08.22
Required system: Windows 10
Note：Solved the occasional compatibility problem with M12 when used on some devices
CMA Fifteen Desktop Headphhone Amplifier/ DAC
Driver Downloads
Version：USB driver
Update time：2021.10.15
Required system：win 7/8 win 10/11
Note：This link is CMA Fifteen driver link. For firmware upgrade installation and instructions, please contact info@questyle.com and indicate your product serial number, we will send the firmware upgrade according to your requirements.
CMA Twelve Desktop Headphhone Amplifier/ DAC
Driver Downloads
Version：USB driver
Update time：2019.12.5
Required system：Win 7/8 10
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QPM Lossless Portable Player
Drivers & Firmware Downloads
Version：QPM DAC USB Driver
Update time：2018.05.17
Required system：Windows XP/7/8/10（32/64bit）/iOS11/Mac OS x10.7 or later
Note：USB driver for DAC, compatible with QPM and QP2R.
Version：QPM firmware 1.05
Update time：2022.08.09
Required system：///
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Version：QPM firmware 1.04
Update time：2018.05.17
Required system：///
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QP2R Lossless Portable Player
Drivers & Firmware Downloads
Version：QP2R DAC USB Driver
Update time：2018.05.17
Required system：///
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Version：QP2R firmware 1.05
Update time：2023.02.23
Required system：///
Note：1. Updates Korean language functionality; 2. Solves issue of unit sometimes restarting when switching from PCM -> DSD audio file formats using digital audio outputs (through 3.5mm optical output or QLINK coaxial output); 3. General stability improvements.
Version：QP2R firmware 1.04
Update time：2018.05.17
Required system：///
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Version：QP2R firmware 1.03
Update time：2017.11.14
Required system：///
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QP1R Lossless Portable Player
Drivers & Firmware Downloads
Version：QP1R DAC USB Driver
Update time：2016.01.26
Required system：Win XP/Vista/7/8/10
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Version：QP1R Firmware V.1.09
Update time：2019.02.25
Required system：///
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Version：QP1R Firmware V.1.08
Update time：2019.02.25
Required system：///
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CMA400i Desktop Headphhone Amplifier/ DAC
Drivers & Firmware Downloads
Version：CMA400i Driver
Update time：2017.07.18
Required system：Win XP/Vista/7/8/10
Other products
If you cannot find the files you need, please call 0755-828356790 or email info@questyle.com, we will contact you as soon as possible
Product Model：CMA 600i
Product Model：CMA 800i
Products Model：CAS 192D
