steps
what you'll need: Over-the-air via CRMX Toolbox app (BLE) or wired via CRMX Update Utility (Windows, 2020); firmware file: timotwo-fx-1.0.6.0.cci inside firmware-pack-crmx.zip
1Download the CRMX Toolbox app from App Store (iOS) or Google Play (Android)
2Enable Bluetooth on your mobile device
3Open CRMX Toolbox and allow it to scan for nearby BLE-enabled CRMX devices
4Tap the discovered TimoTwo-based device in the device list
5Navigate to the Firmware Update section within the device panel
6Confirm the update prompt; the app downloads and flashes the new firmware OTA
7Wait for the device to reboot and verify the new version in the device info screen
GotchaRelinking receivers may be required after updating from versions prior to 1.0.5.0 due to transmitter clone fix GotchaCRMX Update Utility is Windows-only (2020 build); Toolbox app is the recommended modern method GotchaLatest firmware file is inside the firmware-pack-crmx.zip bundle, not available as a standalone download via direct URL