Current location - Training Enrollment Network - Early education courses - The blue card BP-20 12F patrol indicator is flashing all the time. What is the reason for not being able to read the card?
The blue card BP-20 12F patrol indicator is flashing all the time. What is the reason for not being able to read the card?
The reasons may be:

1, data in the bar is full.

2, patrol better clock reset.

3. The patrol battery is dead. Processing method: Check whether patrol data can be collected through the communication base. If yes, collect the data and click the Save button. The process of saving data will clear the patrol memory and set the clock. Note: You must click the "Save" button, even if there is no data, so as to ensure better patrol and set the clock. The computer clock must be correct. You can read the card after clearing the data and resetting the clock (button).