Note: When you click the links below to download the firmware, it indicates that you have already read and agreed to the Open source licenses.
How to upgrade the firmware of UTWS5: Click here
(Video instruction: Click here)
FiiO Control app: Click here
UTWS5 V1.5 firmware download link: Click here
Added PEQ, codec display, and codec selection functions for the UTWS5
UTWS5 V1.42
Improved the calling quality.
Updated at 2022-03-29
UTWS5 V1.4 firmware download link: Click here
The following changes and improvements have been made in V1.4:
1. Added Ambient Sound Mode
After
enabling the Ambient Sound Mode, we can easily catch up with small
talks with our friends, hear the sound of vehicles on the road as well
as the arrival reminder in the subway without taking off headphones.
Triple-click
the button on the right earhook to enable the Ambient Sound Mode. Also,
we can enable it on the FiiO Control APP: UTWS5->Audio->Ambient
Sound, and adjust the gain here.
2. Added Game Mode
Turning on the Game Mode can significantly improve the low latency in the Bluetooth transmission process.
Tested by FiiO Labs, the aptX Adaptive can improve the latency by about 27% while the aptX can improve by about 41%.
**When
connecting the UTWS5 to the Mi 10 in aptX Adaptive codec, the measured
latency goes up to 165ms with the Game Mode off, while the latency goes
down to 121ms with the Game Mode on.
**When
connecting the UTWS5 to the Huawei P20 in aptX codec, the measured
latency goes up to 255ms with the Game Mode off, while the latency goes
down to 150ms with the Game Mode on.
3. Added LHDC Bluetooth codec (beta version)
LHDC
is a high-definition Bluetooth audio codec technology with similar
performance to LDAC, both of which support up to 96k/24bit audio
transmission.
When
LHDC was HWA at first, FiiO took the lead in applying this technology
to the BTR3 stereo Bluetooth amp. After years of technical iterations,
it is now becoming more and more mature. In addition, some Chinese
mainstream mobile phone manufacturers (such as OPPO, Xiaomi, vivo) have
gradually included the HD Bluetooth transmission of LHDC, making this
technology more and more popular.
In
order to meet the needs of more audiophiles for high-definition sound
quality of TWS Bluetooth transmission, we decided to introduce LHDC
again and try it out on the UTWS5 first after careful consideration.
4. Miscellaneous improvements on performance.