Just to clarify - mine was fine after another reboot following the āUI not testedā error
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OS 1.30B finally motivated me to dust off my OTMkI, which had been gathering dust after it crashed on us, in the middle of band rehearsals for our set at Psycho Las Vegas 2016. Belated thanks to those here who suggested the problem might be with too many Projects being on the CF card - I deleted a bunch of unused Projects and the machine seems stable again. Early thoughts on 1.30B on Mk1.:
The bad:
- Updated manual mislabels a critical button for the Trig Conditions/Fills stuff - keeps mentioning a button called PATTERN PAGE but the label actually says SCALE SETUPā¦ This is a needlessly confusing oversight.
- No MIDI note number for activating a Fill (currently need to hold 2-3 buttons). Not sure Iāll be using Fills very much - seems like itād be easier to just program another pattern, with trig conditions set to taste, and switch to that for my āfillā.
- Manual does not explain what Fill Mode actually looks like on the MkI. Just mention that the 4 LEDs next to the SCALE SETUP button flash, please.
The good:
- Trig conditions is a huge game-changer. Cheers to the Elektron team for putting in the time to implement this for the MkI, even though itās probably not as profitable for them as newer products.
- Bug fixes!!!
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LOL, I just seen this and now my OT is dead frozen in the startup! Halp!! 
1.30B
Im having MIDI problems.
I have 3 boxes plugged in after Octatrack.
Monologue, TR-09, TT-303. Each on MIDI Channel 1, 2, 3.
I can send MIDI to the first box in the chain ( #1) but then
it dies after the first box.
This is only after this update. Anyone else having this?
It seems unlikely that this is anything to do with the OT firmware update.
What MIDI cable connections have you made?
What MIDI channels have you set on the OT?
What MIDI settings have you configured on the other instruments?
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Hello Elektronauts : )
I will update my new Octarack MK2 from OS 1.30 to 1.30B.
But before i update i better want to ask the Forum:
Are there any problems with the new OS 1.30B?
Or can i install the new OS 1.30B without any doubts?
(And is it worth to Upadate now?)
Thank you very much and have a nice day!
Best regards,
Alex : )
Hi Alex,
thereāll always be issues, but the general consensus seems to be that upgrading from 1.30 to 1.30B does more good than harm. If you havenāt run into issues with 1.30 and you have a gig coming up, maybe itās not a good idea to upgrade just now, but I probably donāt need to tell you thatā¦
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And good practice is creating a new blank project and save it, to avoid corrupting anything.
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Hi Hans 
Thank you! More good than harm sounds good!
I`ve searched in this forum and didnt find some specific post to this.
Best regards,
Alex : )
Just upgradedā¦ Shouldāve read the instructions firstā¦ Goodbye CF card and projects!! 
What happened?
Upgraded to 1.30 and suddenly my CF card and projects got wiped. 
My fault for not backing it up though. Oh well.
I got 3 boxes connected by midi after my OT. No problem at all after upgrading the OS. Check your cables, your channels, etc. I think itās not a issue with the new OS.
If itās any consolation, this is odd and may not even be connected to the upgrade. Sometimes the directory structure on flash cards can get inconsistent with the actual data still intact. Maybe run a google search for ācompact flash file recovery utilityā and you might just be able to get back what you lost. After that make sure to take regular backups in case itās the card thatās starting to lose it. Good luck!
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Oh, thatās sad. Did you eject the OT on the PC before the upgrade?
Thanks iāll look into it!!
I donāt think I didā¦ 
This naut had her folder structure change when upgrading and moved things around and got it working again:
Did @snugglybunhead confirmed it to you in secret?
I didnāt loose anything during upgrade. How can it happen if you donāt format the card?