I changed my password for my spark and I forgot the password what do I do

To reset, hold the battery down for 9 seconds until you hear the aircraft beep three times. To modify, connect your mobile device to Spark, enter the DJI GO 4 app, and modify the Wi-Fi username and password in the Connection Help Menu. (Note: If Spark is connected with DJI Assistant 2 on a computer, restart the aircraft before resetting the Wi-Fi username and password.)