Today my iPhone X got stuck at a logo-flash-loop. After searching for some information with Google I tried the "voldown+volup" restart way.
The infinite logo loop did stop but I still can't access my iPhone. I saw a screen like this:
I searched again and found that there is a way to update my iPhone software without erasing my data. It says that I just need to use iTunes on Mac to update the iOS software.
Which I think is very good. So I opened my iTunes on my Mac and it really tells me that there's an update (like 13.3.1).
After downloading the iOS package. And everything starts to move on. I saw an error like this:
What can I do now? What is trouble for me is not just data, pictures, but I have 2 of my bank apps on the iPhone which is super inconvenient to recover if I can't access them.