I just landed and I’m off work for couple days , just saw this post and when I had done my screen replacement I looked all over for a how to fix axis, I didn’t find any post until I worded my question differently and found this post. I’m not sure if a person could use the original firmware and flash that back to the venue 8 pro (5830) and have it repair the axis issue, since I’ve already done mine , maybe the next time I replace I’ll give that a shot. I had talked to a dell tech and he seem to think I had a different problem so they weren’t to helpful . I also posted a link to this post at dell forum in tablets to this post so that anyone else that has this issue finds this. I’m glad that the OP put this up for all the rest of us.