Lark 150 Firmware Upgrade Tutorial Hollyland Tech August 24, 2021 02:19 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. Noted: Long-press the mute button of RX when it is in the box to check the firmware version, if it is over then V188.8.131.52 means you do not need to do the upgrade. Download Path: V184.108.40.206 Notice: For the firmware version lower than 220.127.116.11, please first contact us and upgrade to V 18.104.22.168 first. 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. 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 Pair the Transmitter and Receiver? How to use the three Record Modes? 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.