I am running the developer beta on both an iPhone X and an iPad Pro. I have been able to update OTA consistently on the iPhone (even beta 7). However, I have not been able to update the iPad since beta 4. Each attempt gives me an error on the download. I then tried to update by download the IPSW file. I am using iTunes on a PC. I connect the iPad and then click "Update" with the shift key held. The window opens to open the IPSW file, which I select. Then after a brief moment the window closes and nothing happens. Am I doing something wrong? Is there another way to update? I have created a backup of the iPad.
Thanks!