Below are links to the current firmware versions for the L-Series transmitters and receivers.
These are zip files, after downloading extract it into a temporary folder. Use the USB Firmware Updater program to update firmware.
Special note regarding LT and LT/E01 firmware:
The LT and LT/E01 models require different firmware loads. The LT is sold in the US and Canada; the LT/E01 is sold in the European Union. Be sure to download the correct update file and double-check before installing!
Also, units with version 1.xx firmware currently installed can only be upgraded to the latest v1.xx firmware; units with version 2.xx firmware can only be upgraded to the latest v2.xx firmware. v1.xx and v2.xx firmware have identical features and functionality.
Special note regarding LMB and LMB/E01 firmware:
LMB and LMB/E01 are not capable of firmware updates in the field so no files are available for download. Below are links to the firmware revision history. Contact Lectrosonics or your local service center if you need to have firmware updates applied to these products.