Ok...I hate hate firmware upgrades on FOSCAM. Anyways, I am confused since the page has so many. I have a FOSCAM 9821P V2. 1.5.2.11_2.21.1.143. I have not done an update because I believe I have to plug it in to the router to do the update. Can anyone help. What should I do. I did install the equipment search tool but it asks for the firmware file. I don't want to brick this.