# Kickr Firmware 4.2.7 Buggy or Broken **URL:** \ **Category:** Equipment\ **Created:** [February 19, 2022, 2:29am UTC](https://wahoox.forum.wahoofitness.com/t/kickr-firmware-4-2-7-buggy-or-broken/16938 "2022-02-19T02:29:34Z")\ **Posts on this page:** 9\ **Page:** 2
**Author:** ![jf1236](https://avatars.discourse-cdn.com/v4/letter/j/71c47a/32.png) [@jf1236](https://wahoox.forum.wahoofitness.com/u/jf1236)\ **Post date:** [March 13, 2022, 5:21pm UTC](https://wahoox.forum.wahoofitness.com/t/kickr-firmware-4-2-7-buggy-or-broken/16938/22 "2022-03-13T17:21:24Z")
I’ve tried 4.2.8. I no longer get power spikes. I would recommend doing a spindown after upgrading as my kickr was reporting around 7w lower than my pedals. Post-spindown it was within 1w. ---
**Author:** ![Scott\_Yarosh](https://sea2.discourse-cdn.com/flex020/user_avatar/wahoox.forum.wahoofitness.com/scott_yarosh/32/6708_2.png) [@Scott\_Yarosh](https://wahoox.forum.wahoofitness.com/u/Scott_Yarosh)\ **Post date:** [March 17, 2022, 2:48pm UTC](https://wahoox.forum.wahoofitness.com/t/kickr-firmware-4-2-7-buggy-or-broken/16938/23 "2022-03-17T14:48:32Z")
This happened on your KICKR CORE ? Which FW version ? ---
**Author:** ![Monkey820](https://sea2.discourse-cdn.com/flex020/user_avatar/wahoox.forum.wahoofitness.com/monkey820/32/10070_2.png) [@Monkey820](https://wahoox.forum.wahoofitness.com/u/Monkey820)\ **Post date:** [March 17, 2022, 7:56pm UTC](https://wahoox.forum.wahoofitness.com/t/kickr-firmware-4-2-7-buggy-or-broken/16938/24 "2022-03-17T19:56:53Z")
I updated my Core, and I have no longer gotten the spikes. Knock on wood, everything seems to be working now. ---
**Author:** ![Scott\_Yarosh](https://sea2.discourse-cdn.com/flex020/user_avatar/wahoox.forum.wahoofitness.com/scott_yarosh/32/6708_2.png) [@Scott\_Yarosh](https://wahoox.forum.wahoofitness.com/u/Scott_Yarosh)\ **Post date:** [March 17, 2022, 8:14pm UTC](https://wahoox.forum.wahoofitness.com/t/kickr-firmware-4-2-7-buggy-or-broken/16938/25 "2022-03-17T20:14:35Z")
We last updated KICKR CORE in October 21 and before that June 21. What firmware version are you on? ---
**Author:** ![Monkey820](https://sea2.discourse-cdn.com/flex020/user_avatar/wahoox.forum.wahoofitness.com/monkey820/32/10070_2.png) [@Monkey820](https://wahoox.forum.wahoofitness.com/u/Monkey820)\ **Post date:** [March 18, 2022, 10:56am UTC](https://wahoox.forum.wahoofitness.com/t/kickr-firmware-4-2-7-buggy-or-broken/16938/26 "2022-03-18T10:56:39Z")
I’ll have to check when I’m at home. I do know that after I set up my KICKR, I updated the firmware once, then, when I saw the spikes, I saw that I could update again. I know this doesn’t help until you know what version I’m running, but until I can hook up to my KICKR, I won’t be able to get you the version. I’ll get it tonight. ---
**Author:** ![Scott\_Yarosh](https://sea2.discourse-cdn.com/flex020/user_avatar/wahoox.forum.wahoofitness.com/scott_yarosh/32/6708_2.png) [@Scott\_Yarosh](https://wahoox.forum.wahoofitness.com/u/Scott_Yarosh)\ **Post date:** [March 18, 2022, 12:29pm UTC](https://wahoox.forum.wahoofitness.com/t/kickr-firmware-4-2-7-buggy-or-broken/16938/27 "2022-03-18T12:29:33Z")
I think you have a KICKR v5 not a KICKR CORE. Then this makes sense and the new version fixes the problem. ---
**Author:** ![Monkey820](https://sea2.discourse-cdn.com/flex020/user_avatar/wahoox.forum.wahoofitness.com/monkey820/32/10070_2.png) [@Monkey820](https://wahoox.forum.wahoofitness.com/u/Monkey820)\ **Post date:** [March 18, 2022, 12:48pm UTC](https://wahoox.forum.wahoofitness.com/t/kickr-firmware-4-2-7-buggy-or-broken/16938/28 "2022-03-18T12:48:57Z")
Damn, yes, you are correct, sorry for any confusion I caused. After a few hours on it, my brain gets a little fuzzy about details. Thank you though for the responses! ---
**Author:** ![jf1236](https://avatars.discourse-cdn.com/v4/letter/j/71c47a/32.png) [@jf1236](https://wahoox.forum.wahoofitness.com/u/jf1236)\ **Post date:** [March 28, 2022, 5:31pm UTC](https://wahoox.forum.wahoofitness.com/t/kickr-firmware-4-2-7-buggy-or-broken/16938/29 "2022-03-28T17:31:12Z")
I upgraded my kickr v5 to 4.2.8 a couple weeks back. It still has power spikes but now it happens when erg mode starts again after a brief pause instead of during the brief pause. Disappointing. ---
**Author:** ![AkaPete](https://sea2.discourse-cdn.com/flex020/user_avatar/wahoox.forum.wahoofitness.com/akapete/32/10384_2.png) [@AkaPete](https://wahoox.forum.wahoofitness.com/u/AkaPete)\ **Post date:** [March 28, 2022, 5:47pm UTC](https://wahoox.forum.wahoofitness.com/t/kickr-firmware-4-2-7-buggy-or-broken/16938/30 "2022-03-28T17:47:43Z")
I’d open a ticket with Wahoo. [Previous page](https://wahoox.forum.wahoofitness.com/t/kickr-firmware-4-2-7-buggy-or-broken/16938.md?page=1)