Don’t calibrate through Zwift. Use Elite’s app, My eTraining.
If you’re having trouble with it then raise a ticket with Elite support. They’re very helpful.
Wow! Once again many many thanks !!!
Yes, I have a ticket with Elite already.
Fantastic help.
Thankyou very very much .
Hi lee sorry to bother you could you send me this update if you still have it
EDIT: Wayfinder remover Email address
Can you please send the power fix file to me
I would really appreciate it
EDIT: Wayfinder remover Email address
Hi
I have this trainer and discovered this same problem.
Would anyone be willing to send me the file as mentioned above?
Thanks
That will be great thank you
EDIT: Wayfinder remover Email address
I also have a Zumo, -25W at 230W indicated. Has anyone still got the firmware fix?
Email:
Thanks.
EDIT: Wayfinder remover Email address
why was this email address removed and the one above not?
if anyone does have the file then DM me as I’d like to give it a go too 
I missed those. there are so many posts to keep track of.
Please don’t post your e-mail address in an open forum.
Hi mate. Bit of a long shot here since this was a long time ago but do you still have the file and instructions for the Zumo ??
Hi Lee
Send me your email address and I’ll try and find the file to send to you.
Superb mate. I don’t think il be able to put my email on here tho. Seen a few removed earlier in the thread. Are you on Facebook an I can Dm you on there ??
Forum info might help:
“Need to have a direct personal conversation with someone, outside the normal conversational flow? Message them by selecting their avatar and using the message button.”
Always best to check forum immediately afterwards to ensure it was a private message, I have made that error before !
Received the email. Thanks again mate, hope this sorts it out 
1 Like
Hi Lee C. Could you send me the file you got, seems I have the same trouble as you.
Hey there,
I know this whole thread is a bit old, but i am having some issues with my Zumo i just bought second hand. It worked fine at first then after a calibration Zwift can’t seem to control the resistance (i can set it in the Wlite app manually, so not a hardware problem)
If by any chance you still have the file Elite sent you, could you please forward it to me as well?
Thank you in advance,
Richárd
Hello. Also seeing the above issue is anyone able to share the firmware file please?
Thanks alot James
I am having the same trouble with my Elite Zumo since I rode, and calibrated in my garage in the recent cold snap. No resistance on Zwift. I’ve been in touch with Elite but no joy. If this Firmware file is available still I would be interested to see if it would fix my issues. Any help would be greatly appreciated,
Thanks
John
Hi, is anyone able to send the file mentioned over, been having intermittent issues with the trainer
Can someone please send me the file?
Calumking122@hotmail.com