I tried to update the Lighthouse firmware to the latest version, but after plugging in the usb cable and power while holding the mode button, the folder 'CRP DISABLD' will open with one file 'firmware.bin', the Update window will keep waiting for the base station until it timeout and fail.
By enabling bluetooth, pairing the stations and enabled bluetooth communications in SteamVR, then i was able to try to update the firmware wirelessly, this also failed. The file seems to be missing....
firmware_update.txt Wed Feb 22 2017 04:39:43.982452
Wed Feb 22 2017 04:39:43.982452 - ================================================
Wed Feb 22 2017 04:39:44.014224 - FirmwareWizard entering state Device Overview (0)
Wed Feb 22 2017 04:39:44.014916 - Start Firmware Update (Device Index:2, Recovery:0, ForceAll:0, ForceFix:0).
Wed Feb 22 2017 04:39:44.035362 - 1 Updates scheduled for Device Class: 4
Wed Feb 22 2017 04:39:44.035392 - 1: Watchman Disk Update: Existing:244, Required:436
Wed Feb 22 2017 04:39:44.035401 - FirmwareWizard entering state Base Station Start (10)
Wed Feb 22 2017 04:39:44.035406 - FirmwareWizard overwriting state to Shutdown VR Apps (1)
Wed Feb 22 2017 04:39:46.265900 - Delaying for 5000 milliseconds...
Wed Feb 22 2017 04:39:51.265004 - Delay done
Wed Feb 22 2017 04:39:54.355128 - FirmwareWizard entering state Base Station Start (10)
Wed Feb 22 2017 04:39:56.534602 - FirmwareWizard entering state Base Station Wireless Progress (17)
Wed Feb 22 2017 04:39:56.586405 - Wireless MCU Update: Existing:244, Required:436
Wed Feb 22 2017 04:39:56.636865 - Basestation Update: MCU ~/Steam/steamapps/common/OpenVR/tools/lighthouse/firmware/lighthouse_tx/archive/htc_2.0/lighthouse_tx_htc_2_0-436-2016-09-20.bin
Wed Feb 22 2017 04:39:56.637087 - Retrieved firmware update 0 percent complete (bSuccess = 1).
Wed Feb 22 2017 04:39:56.637146 - FirmwareWizard entering state Base Station Success (12) with No update necessary (4)
Wed Feb 22 2017 04:39:58.126740 - FirmwareWizard entering state Device Overview (0) with No update necessary (4)
Wed Feb 22 2017 04:39:59.702526 - Start Firmware Update (Device Index:3, Recovery:0, ForceAll:0, ForceFix:0).
Wed Feb 22 2017 04:39:59.702860 - No FirmwareUpdate description refresh: using old data.
Wed Feb 22 2017 04:39:59.702892 - 1 Updates scheduled for Device Class: 4
Wed Feb 22 2017 04:39:59.702927 - 1: Watchman Disk Update: Existing:244, Required:436
Wed Feb 22 2017 04:39:59.721959 - FirmwareWizard entering state Base Station Start (10) with No update necessary (4)
Wed Feb 22 2017 04:40:01.815160 - FirmwareWizard entering state Base Station Wireless Progress (17)
Wed Feb 22 2017 04:40:01.866838 - Wireless MCU Update: Existing:244, Required:436
Wed Feb 22 2017 04:40:01.917217 - Basestation Update: MCU /mnt/vol0/home/madrang/Steam/steamapps/common/OpenVR/tools/lighthouse/firmware/lighthouse_tx/archive/htc_2.0/lighthouse_tx_htc_2_0-436-2016-09-20.bin
Wed Feb 22 2017 04:40:01.917435 - Retrieved firmware update 0 percent complete (bSuccess = 1).
Wed Feb 22 2017 04:40:01.917463 - FirmwareWizard entering state Base Station Success (12) with No update necessary (4)
Wed Feb 22 2017 04:40:04.615454 - FirmwareWizard entering state Device Overview (0) with No update necessary (4)
In the logs i saw that SteamVR tries to use "~/Steam/steamapps/common/OpenVR/tools/lighthouse/firmware/lighthouse_tx/archive/htc_2.0/lighthouse_tx_htc_2_0-436-2016-09-20.bin" but it is missing.