Lark 150 Firmware Upgrade Tutorial Hollyland Tech June 11, 2021 02:28 Updated Updates: Improved the UV Meter Display Fixed the charging issue Solved the battery display and charging case LED display error Routine bug fixes and user experience improvements. Download Path: V126.96.36.199 Notice: This update is only for Windows 10 OS PC. Please do not take the Transmitter or Receiver out of the Case during the update. Please unzip the file to the C drive of your PC. Please do not disconnect the USB cable during the update. For the firmware version lower than 188.8.131.52, please first contact us and upgrade to V 184.108.40.206 first. Mac users could use some software to install the WIN 10 system and then finish this upgrade. Steps: Driver InstallationOpen the folder 1-Driver and install the correct driver: Upgrade Process 2.1.1 Open the folder 2-HollylandTool_V1.0.0_20201210 and Run the software 6901_upgrade.exe 2.1.2 Click Refresh and wait till the device is connected. Then Select Upgrade, the system will upgrade automatically. 2.1.3 The upgrade will be done when the battery display of the receiver screen turns to normal. Related articles How to connect the Lark150 to the smartphone and audio devices? How to use the three Record Modes? How to Pair the Transmitter and Receiver? How to set them up when multiple sets of lark 150 are used at the same place? How to contact Hollyland Support Team? Comments 0 comments Article is closed for comments.