1. The English time limit is limited to one decimal place. 2. Fix the JM01 firmware name transmission error defect. 3. When reading JM01 firmware information, there is no need to enter file mode. 4. Add firmware name display in the JM01 transmission progress window.

1. When the instrument lacks the BL program, block the App from automatically entering the update process. 2. Block the physical return action of the upgrade progress window. 3. Change the speed units to Km/h and mph.

1. Add a new version check function for the app. 2. Block the speed limit password verification function of the Lu Kang project.

1. Add online differential package upgrade function. 2. Add JM01 downloader file transfer protocol and functionality. 3. Known bug fix.

1. Bluetooth unlock defect repair. 2. Add Bluetooth protocol exception reminder. 3. Known defect repair.

1. HS02 instrument adds FB8003A chip OTA upgrade.

1. Change the Bluetooth filtering condition of the instrument to broadcast Bluetooth signals containing the HY00 word, to be compatible with S402 and L02 instrument models, and to be compatible with published B06 instruments. 2. Adjust the page menu and editing methods. 3. OTA upgrade logic optimization. 4. Fix bug.

1. Fix the issue of automatic disconnection after Bluetooth connection. 2. Fix the issue of incorrect input of negative numbers in some parameters on the settings page.

1. Fix the issue where some mobile phones cannot scan Bluetooth signals when GPS positioning is not turned on. 2. Fix abnormal connection issues during multi instrument switching. 3. Fix bug.