# Not booting anymore

**URL:** <https://forum.udo-audio.com/t/not-booting-anymore/3990>\
**Category:** Super Gemini\
**Tags:** issue\
**Created:** [22 August 2026 16:18 UTC](https://forum.udo-audio.com/t/not-booting-anymore/3990 "2026-08-22T16:18:19Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![Infested-Alien](https://avatars.discourse-cdn.com/v4/letter/i/bc8723/32.png) [@Infested-Alien](https://forum.udo-audio.com/u/Infested-Alien)\
**Post date:** [22 August 2026 16:18 UTC](https://forum.udo-audio.com/t/not-booting-anymore/3990/1 "2026-08-22T16:18:19Z")

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Anyone here experienced this problem? On boot the leds for Env trigger, LFOs turns on for a short time and then nothing more. I contacted UDO support to see what could be the problem.

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**Author:** ![Alex](https://avatars.discourse-cdn.com/v4/letter/a/db5fbb/32.png) [@Alex](https://forum.udo-audio.com/u/Alex)\
**Post date:** [23 August 2026 00:11 UTC](https://forum.udo-audio.com/t/not-booting-anymore/3990/2 "2026-08-23T00:11:35Z")

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Had it. You need to load in record patch mode and write bin file to the disc. It’s strange, but it could be damaged or disappeared. Need to be renewed.

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**Author:** ![Infested-Alien](https://avatars.discourse-cdn.com/v4/letter/i/bc8723/32.png) [@Infested-Alien](https://forum.udo-audio.com/u/Infested-Alien)\
**Post date:** [23 August 2026 00:53 UTC](https://forum.udo-audio.com/t/not-booting-anymore/3990/3 "2026-08-23T00:53:00Z")

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Interesting and how is that done?

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**Author:** ![Alex](https://avatars.discourse-cdn.com/v4/letter/a/db5fbb/32.png) [@Alex](https://forum.udo-audio.com/u/Alex)\
**Post date:** [23 August 2026 06:27 UTC](https://forum.udo-audio.com/t/not-booting-anymore/3990/4 "2026-08-23T06:27:39Z")

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Same as firmware update

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**Author:** ![Infested-Alien](https://avatars.discourse-cdn.com/v4/letter/i/bc8723/32.png) [@Infested-Alien](https://forum.udo-audio.com/u/Infested-Alien)\
**Post date:** [23 August 2026 09:02 UTC](https://forum.udo-audio.com/t/not-booting-anymore/3990/5 "2026-08-23T09:02:36Z")

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Thank you mate but it looks like I cannot even enter the firmware update mode. The gemini wont even pop up as a drive neither on my pc or mac when holding patch + starting the synthesizer ☹

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**Author:** ![Infested-Alien](https://avatars.discourse-cdn.com/v4/letter/i/bc8723/32.png) [@Infested-Alien](https://forum.udo-audio.com/u/Infested-Alien)\
**Post date:** [24 August 2026 18:48 UTC](https://forum.udo-audio.com/t/not-booting-anymore/3990/6 "2026-08-24T18:48:17Z")

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Heres an update on this case. UDO confirmed that this is a hardware failure and I am sending my Gemini for warranty repair.

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**Author:** ![BruteSpringclean](https://avatars.discourse-cdn.com/v4/letter/b/ee7513/32.png) [@BruteSpringclean](https://forum.udo-audio.com/u/BruteSpringclean)\
**Post date:** [26 August 2026 22:45 UTC](https://forum.udo-audio.com/t/not-booting-anymore/3990/7 "2026-08-26T22:45:28Z")

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I had this issue too and the unit needed to be replaced. Nothing to do otherwise. I have not had a problem with my new unit.

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**Author:** ![Infested-Alien](https://avatars.discourse-cdn.com/v4/letter/i/bc8723/32.png) [@Infested-Alien](https://forum.udo-audio.com/u/Infested-Alien)\
**Post date:** [7 October 2026 18:11 UTC](https://forum.udo-audio.com/t/not-booting-anymore/3990/8 "2026-10-07T18:11:20Z")

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Here’s an update on this old post.

My super gemini has now returned from service and it works like a dream after main board replacement / system board. 🤩 And of corse this was sorted out for free on warranty repair.

It’s kind of interesting that I did actually notice some small issues before the mainboard checked out which was volume differences on voice rotation and ribbon controller did have a gap at the end like a zone where it released it’s value. Now everything works as expected! And service was excellent just the patience to wait for everything to be done. 🤘
