CTR2-Flex/CTR2-Dial Dual-Boot Firmware v2.05.02
The new CTR2-Flex v2 firmware allows you to boot either CTR2-Flex or CTR2-Dial firmware without re-flashing your CTR2 controller.
Ham Radio controllers and unique station control accessories
The new CTR2-Flex v2 firmware allows you to boot either CTR2-Flex or CTR2-Dial firmware without re-flashing your CTR2 controller.
July 5, 2026: v2.05.02 There is a separate manual for CTR2-Dial firmware. You can download it here.
CTR2-Dial firmware is now included in CTR2-Flex v2 firmware. You can view the operation manual for CTR2-Dial here. To download a copy of it, press the Download button below. July…
Find the latest CTR2 firmware updates here
Download the latest firmware for your CTR2-Micro here
You can read or download the Operation Manual for the new CTR2-Micro here