I feel your pain... but when was the last update? It was a while ago, right?
I updated my E5000 immediately after I got it about 11 months ago. Scared the hell out of me, but my bike is so underpowered it was a necessity. It's still only 40nm of torque, but now NORM gets there much more easily.
There's no way to check battery health with E-Tube, right, unless you have a special adaptor?
I'd really like to know, because there are some rides at the edge of my range that I hope to try this spring before it gets too hot! Also, I want to make sure the percentage is within warranty.