So I have an iPhone 6 32GB fairly new bought in December 2017, so I didn't think I would be experiencing problems this soon but recently I have. I'm trying to update to iOS 11.3 Beta 6, But everytime I press "Download and Install" the button turns from blue to grey and has a buffering symbol towards the right of the text box, then about 45 secs later it turns back to blue and does not download and install the update. I've already tried a lot of things,I've checked my storage and it has more than enough for the required amount for the update (1.97GB required and I have 5.9GB free) I've rebooted my iPhone a couple of times, I tried disconnecting from wifi then reconnecting, I've tried to just wait like 15 mins and keep pressing the button everytime it goes back to blue, and I've tried connected my phone to my computer with iTunes to update but it says i'm already on the newest firmware (iOS 11.3), even though my phone legit says im able to update to the newest firmware (iOS 11.3 Beta 6) I'm wondering if it has something t do with me being in the iOS developer program? So if anyone could please help me fix this and be able to update that would really be appreciated, thank you.