Just replace the burrs, you can find them on eBay and aliexpress. I can't post links here but they cost between $10-35 shipped. They look identical to the originals.

If you can't find it a wool washer from Michael's or Joann etc will work. You can also get them online at aliexpress and ebay.

Make one, lots of materials at your local hobby store or online. https://www.aliexpress.us/item/325680549...

Look at the photo in step 6. Top left corner, you will see the adjustment gear. Adjust that so you can make it more coarse. (lift the small gear & stem and reposition it a gear or two) Now you will have more adjustment in the coarser range.

In what series of Jura is this brewgroup found in?

Sounds like the that's what makes the clicking sound when you adjust the grinder from course to fine.

If you remove the top, black ring with the gear teeth, you will expose the off white plastic, it has holes all the way around,

that where the ball and spring go to make that clicking sound. Not a big deal, I misplaced mine and I've been using the grinder

for a few years now without it. https://www.juraprofi.de/Jura-Ersatzteil...

If you can't find the felt ring, you have a few options, make one, beg the German jura parts seller to sell you one, or search aliexpress for felt ring, felt washer, felt gasket.

you can get that on eBay and aliexpress/alibaba. if you like take out the burrs and and measure them and I can tell you if they are the common ones being sold everywhere.

I have the iCopy, It copied the data of my lcd to an original lcd and I also did it to my battery. But my XR on ios 13.13 does not return trutone and the battery has the not original warning. And even if I put back the original battery, reboot and all, factory reset. Still has the warning and trutone does not return. Also I did update the iCopy firmware, before and after it did not work. Any ideas???

Are you getting any errors? like fill beans? Have you tried turning up the settings to make a stronger espresso? Also fill the bean hopper to the top and test.