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.
CTR2-Flex Firmware Manual – v2.05.02
July 5, 2026: v2.05.02 There is a separate manual for CTR2-Dial firmware. You can download it here.
CTR2-Dial Firmware Manual – v2.05.02
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…
Download CTR2-Micro Firmware – v1.08.00
Download the latest firmware for your CTR2-Micro here
CTR2-Micro Operation Manual – v1.08.00
You can read or download the Operation Manual for the new CTR2-Micro here
CTR2-MIDI Operation Manuals – v2.01.01b
Read or download the latest operation manual for CTR2-MIDI here
CTR2-Quad Hardware Manual – v1.02
M5Dial based CTR2 hardware is available in three different configurations. All three variations run the CTR2-Flex firmware that provides direct control of your Flex radio over WiFi using the Flex…
CTR2-Duo Hardware Manual – v1.01
M5Dial based CTR2 hardware is available in three different configurations. All three variations run the CTR2-Flex firmware that provides Bluetooth/USB MIDI control for third-party apps like SmartSDR for iOS, SDR-Control,…
CTR2-Uno Hardware Manual – v1.01
M5Dial based CTR2 hardware is available in three different configurations. All three variations run the CTR2-Flex firmware that provides Bluetooth/USB MIDI control for third-party apps like SmartSDR for iOS, SDR-Control,…