FWReleaseNote.txt Driver File Contents (tc00439100e.exe)

Version: 0x4239(HCI_REVISION), 0x38DE(LMP_SUBVERSION)
1. erase the trash data in fifo to avoid ring noise after receive hci reset command

Version: 0x4239(HCI_REVISION), 0xD38C(LMP_SUBVERSION)
1. fixed an issue with ring noise of HFP/HSP application
   *  send mute code in SCO/eSCO channel when controller does not receive any hci isochronous data packets from upstream

Version: 0x423B(HCI_REVISION), 0xBD88(LMP_SUBVERSION)
1. enhance acl downlink throughput in USB 2.0

Version: 0x423C(HCI_REVISION), 0x0DAA (LMP_SUBVERSION)
1. correct the gpio settings
2. fixed an issue with afh channel map generator deadlock

Version: 0x423D(HCI_REVISION), 0x1BFB(LMP_SUBVERSION)
1. fixed an issue with missing radio off indication in cpu boot time

Version: 0x424B(HCI_REVISION), 0x4E4C(LMP_SUBVERSION)
1. fixed some IOT issues with some bt devices
2. reset duplicated filter after disable le scan

Version: 0x201E(HCI_REVISION), 0xD3DD(LMP_SUBVERSION)
1. fixed some IOT issues with some bt devices
2. improve the performance of multi-links and co-existence

Version: 0x201E(HCI_REVISION), 0xD701(LMP_SUBVERSION)
1. fixed an issue with power control after download patch code when reboot the system
Download Driver Pack

How To Update Drivers Manually

After your driver has been downloaded, follow these simple steps to install it.

  • Expand the archive file (if the download file is in zip or rar format).

  • If the expanded file has an .exe extension, double click it and follow the installation instructions.

  • Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.

  • Find the device and model you want to update in the device list.

  • Double-click on it to open the Properties dialog box.

  • From the Properties dialog box, select the Driver tab.

  • Click the Update Driver button, then follow the instructions.

Very important: You must reboot your system to ensure that any driver updates have taken effect.

For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.

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