LED marquee, LCD Cannot Display Information

Reason:

When updating the firmware, there must be no interference in the middle (such as unplugging the adapter during the update, etc.), otherwise the BMS will enter the root state, the BMS LED will show a marquee, and the information displayed on the LCD will be 0.

Measure: Wait for the BMS to shut down and update the BMS firmware again to resolve this issue.

The detailed tutorial is as follows

1. Use rs485 adapter to connect to the 485-1 interface of the battery.

2. Directly click on the firmware upgrade page and click Firmware Upgrade.

3. Open the upgrade window:

（1）Choose the correct COM port

（2）Confirm the baud rate is 19200

（3）Open the serial port channel

(If the serial port channel is not opened, the serial port is not opened error will appear)

（4）Select the upgrade file

（5）Confirm upgrade

4. After updating, restarting the BMS/battery will restore it to normal.