The flush software version is too low, and the operation methods are as follows:

1. First, open the flush software in the opened mobile phone, as shown in the following figure.

2. Then, after opening the main interface of the flush software, click the transaction sign below, select the brokerage firm, and enter the user name.

3. after logging in, click the withdrawal sign pointed by the arrow in the new interface.

4. after entering the cancellation, click the delegate to cancel the order, as shown in the following figure.

5. finally, click ok to confirm the cancellation, as shown in the figure below.