# Led lights don't work on right side of prime 4
**URL:** https://community.enginedj.com/t/led-lights-dont-work-on-right-side-of-prime-4/33584
**Category:** Standalone Controllers
**Tags:** engine-os, prime4, controller, hardware-issue
**Created:** [July 8, 2021, 4:27am UTC](https://community.enginedj.com/t/led-lights-dont-work-on-right-side-of-prime-4/33584 "2021-07-08T04:27:24Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@DJGeecheepop](https://community.enginedj.com/u/DJGeecheepop)
#### Post date: [July 8, 2021, 4:27am UTC](https://community.enginedj.com/t/led-lights-dont-work-on-right-side-of-prime-4/33584/1 "2021-07-08T04:27:24Z")
Prime 4 Led lights on the right side wont work
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### Author:  [@0ddw0rld](https://community.enginedj.com/u/0ddw0rld)
#### Post date: [July 8, 2021, 10:01am UTC](https://community.enginedj.com/t/led-lights-dont-work-on-right-side-of-prime-4/33584/2 "2021-07-08T10:01:42Z")
You will need to provide some more info. For example
Which firmware version? Did they fail after a firmware upgrade ? Does upgrading/downgrading the firmware resolve the issue? Are the buttons / platters working? Any error messages on screen during/after boot?
Help us to help you.
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### Author:  [@DjMell26](https://community.enginedj.com/u/DjMell26)
#### Post date: [July 8, 2021, 11:57am UTC](https://community.enginedj.com/t/led-lights-dont-work-on-right-side-of-prime-4/33584/3 "2021-07-08T11:57:38Z")
The “On Air” option may be active in the “utility / preferences” menu. If so, the jog wheel will light up when you raise the fader.
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### Author:  [@system](https://community.enginedj.com/u/system)
#### Post date: [August 3, 2021, 2:10am UTC](https://community.enginedj.com/t/led-lights-dont-work-on-right-side-of-prime-4/33584/4 "2021-08-03T02:10:36Z")
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