# EVQWJN007 Trackball Troubleshooting, Fixes and Mods **URL:** \ **Category:** uConsole\ **Created:** [January 14, 2026, 1:33am UTC](https://forum.clockworkpi.com/t/evqwjn007-trackball-troubleshooting-fixes-and-mods/21031 "2026-01-14T01:33:03Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![beams](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/beams/32/15232_2.png) [@beams](https://forum.clockworkpi.com/u/beams)\ **Post date:** [January 14, 2026, 1:33am UTC](https://forum.clockworkpi.com/t/evqwjn007-trackball-troubleshooting-fixes-and-mods/21031/1 "2026-01-14T01:33:03Z")
I recently ordered five EVQWJN007 trackballs, and none of them worked out of the box. It’s clear that modern production and materials are a far cry from the original BlackBerry-era standards. I’ve been researching how to rescue these units and improve their feel. For a deep dive into the technical specs, check out this resource: **[EVQWJN007 Trackball](https://jing.io/garden/EVQWJN007-Trackball/)**. ### **Key Fixes & Mods** - **Fixing Mechanical Failure:** Most “dead” units just have poor tolerances. Increases contact pressure between the ball and the internal rollers, which usually restores tracking instantly. - **The Glass Ball Mod:** I’ve replaced the stock rubber ball with a glass ball. The added mass provides much better inertia and smoother tracking than the lightweight plastic versions found today. **TL;DR:** Don’t toss “broken” units. Simple steps fixes the tracking, and swapping to other type of balls makes the experience feel premium. ![IMG_2903.HEIC](https://canada1.discourse-cdn.com/flex029/uploads/clockworkpi/original/2X/4/4d2cab8cf8aa4437526102d31fcbf3111ed6e6c7.jpeg) ![IMG_2913 Large](https://canada1.discourse-cdn.com/flex029/uploads/clockworkpi/original/2X/3/3d96e1bdb6ce908d2aa7e6772977656afc6d44b4.jpeg) ---
**Author:** ![bored99](https://avatars.discourse-cdn.com/v4/letter/b/919ad9/32.png) [@bored99](https://forum.clockworkpi.com/u/bored99)\ **Post date:** [January 22, 2026, 1:38am UTC](https://forum.clockworkpi.com/t/evqwjn007-trackball-troubleshooting-fixes-and-mods/21031/2 "2026-01-22T01:38:21Z")
where do you get the replacement trackballs? i read your post… but it doesn’t mention where i might salvage the right size. ---
**Author:** ![beams](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/beams/32/15232_2.png) [@beams](https://forum.clockworkpi.com/u/beams)\ **Post date:** [January 22, 2026, 1:43am UTC](https://forum.clockworkpi.com/t/evqwjn007-trackball-troubleshooting-fixes-and-mods/21031/3 "2026-01-22T01:43:26Z")
Amazon or Aliexpress, I think still the rubber ball or any plastic balls would perform better ---
**Author:** ![Ronnie1975](https://avatars.discourse-cdn.com/v4/letter/r/a698b9/32.png) [@Ronnie1975](https://forum.clockworkpi.com/u/Ronnie1975)\ **Post date:** [August 5, 2026, 2:59pm UTC](https://forum.clockworkpi.com/t/evqwjn007-trackball-troubleshooting-fixes-and-mods/21031/4 "2026-08-05T14:59:41Z")
I’m happy i ordered this trackball. It works 1000% better then the stock one. i also updated the keyboard software. I ordered 2 at Amazon for 12 euro. ---
**Author:** ![Codiator](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/codiator/32/15080_2.png) [@Codiator](https://forum.clockworkpi.com/u/Codiator)\ **Post date:** [September 25, 2026, 7:46am UTC](https://forum.clockworkpi.com/t/evqwjn007-trackball-troubleshooting-fixes-and-mods/21031/5 "2026-09-25T07:46:03Z")
In another thread ( [Buying replacement diffuser? - #3 by beams](https://forum.clockworkpi.com/t/buying-replacement-diffuser/23320/3) ), beams mentioned a source for original Panasonic jog balls, from which I immediately ordered a couple. Today I’ve fitted them to both of my uConsoles. They do indeed operate more precisely than the ones supplied with the uConsoles. Although I was already satisfied with the supplied jog balls – in conjunction with the QMK firmware – I still notice an improvement. In my opinion, the movement of the ball is detected more accurately, which sometimes also results in a higher cursor speed. I have reduced the speed accordingly in the control centre. The surface of the balls also appears to be more grippy and has a more pronounced matt finish than that of the balls on the supplied jog balls. I suspect that the magnetic axes are stronger and/or more precise, which, combined with the rougher surface, results in greater accuracy. So if you’re looking for a new jog ball anyway, you might want to give Panasonic’s a go.