CR90 Downloads

NOTE: First time users must download BOTH links listed below for your type of unit
(“S” version or “R” version)

There is a firmware update for units ending in"S".

To install the firmware update follow these steps:

  1. Connect your radar detector to your PC using the USB cable provided with the unit.
  2. Download the Unit Programming Software and Firmware update from the list below.
  3. Open the Unit Programming Software
  4. Choose the Firmware update file that you have downloaded to your computer and the update will automatically begin. 
  5. When the update reaches 100%, click the close button and unplug the unit from your computer.

Serial number ending with "R"

Serial number ending with "S"

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