I dont have much info but this exact same thing happened to my Iphone 8 plus 2 nights ago. I have called many data recovery specialists and they all pretty much say the same thing- they cant bipass error 14 to get to the data. I was also told to keep my phone, dont do anything else to it, and maybe one day apple or technology in generally will come up with a way to bipass error 14. I am devastated as well, as I lost very special, important pictures and videos of my sons birth and his first 4 months of his life. I am so sorry you all are dealing with this too.