Step 2 Please connect X1 to mobile phone via Bluetooth. Launch G-Crux APP and click “Update firmware”.
Step 3 Please disconnect X1 and delete the pairing data of X1 in Bluetooth setting. Then turn off the G-Crux APP in the background.
Step 4 Please connect X1 to mobile phone via Bluetooth and launch G-Crux APP. The APP will automatically downgrade MCU firmware to the previous version and it takes about 3-5 seconds. Please click "Confirm" button after the downgrade is finished.
Step 5 Please disconnect X1 and delete the pairing data of X1 in Bluetooth setting. Turn off G-Crux APP in the background. Then restart X1, and the downgrade is complete.