I had a recent updat that changed the look of my texting keyboard , and such. Didn't mind that so much as the erasure of my saved pages.It was all app customized and now gone. How do I undo the update?
Which desktop pages are you referring to? Your homescreens? If so, to avoid this in the future you can install Samsung's Good Lock app. You're looking for the Home Up module. With Home Up you can save your homescreen layouts so they can be quickly restored, should this ever happen again.
Also, I highly recommend installing all of the Good Lock modules. They vastly increase the level of functionality and personalization on your phone. 🙂