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I didn't found a LBT-firmware For my X4R SB receiver. What can I do Greetings from Germany Wolfgang Rauser RETURN

Dear Friend, 

You can download it from our webite.

Link(version: 151118): http://www.frsky-rc.com/download/view.php?sort=Firmware&down=246&file=Firmware-X4R/X4RSB