Hello Ralftech, I am Lee here, I have an iPhone 15 Pro Max which has the same problem. My device starts bootlooping when it's in a very low storage state. I tried to boot my device into recovery mode and update it to the latest iOS (iOS 17.4.1). But the updates failed many times and showed the same error codes, please refer to the screenshot attached. Please help with this matter, I appreciate if you could provide me the "iOS light version" you mentioned in your post. Looking forward to your reply, thanks!