Hi Deborah! Downgrading can be problematic. But it is possible. Officially from Lego, this seems to be the only way: https://urldefense.com/v3/__https://spikelegacy.legoeducation.com/hubdowngrade/*step-1__;Iw!!N6YHze6lT7thMl0!Lsw3Z5SgY1W1_9QVGaVRAkpOsizCrsomxX2UwhUXbYdqdMIRfPkqKYON_A7XHHrSkr69t0CeBeP3CkvW0oiuD_ZheDexYu1l7vov$ <https://urldefense.com/v3/__https://spikelegacy.legoeducation.com/hubdowngrade/*step-1__;Iw!!N6YHze6lT7thMl0!OPyEHT6gPedcM3wlu-cohtNv5-5zo_UlI5Z5uR0iONgkwJEueIeg_Fdds7K7H3FJVqY_hM2hubRN6NLKS2weyw$> Requires a computer with Chrome OS, or a Mac with a Chrome browser. I also found this: https://urldefense.com/v3/__https://dfu.pybricks.com/__;!!N6YHze6lT7thMl0!Lsw3Z5SgY1W1_9QVGaVRAkpOsizCrsomxX2UwhUXbYdqdMIRfPkqKYON_A7XHHrSkr69t0CeBeP3CkvW0oiuD_ZheDexYgm6qQfW$ <https://urldefense.com/v3/__https://dfu.pybricks.com/__;!!N6YHze6lT7thMl0!OPyEHT6gPedcM3wlu-cohtNv5-5zo_UlI5Z5uR0iONgkwJEueIeg_Fdds7K7H3FJVqY_hM2hubRN6NKgrLilGg$> But I am not sure it will work because pybricks is a specific OS outside of Lego's official OS. I think it will work, but I am not sure. Be careful. I have not heard of any updates in the last week. Sorry! I hope this helps. Skip On Wed, Feb 15, 2023 at 5:45 PM Deborah Heyward <[log in to unmask]> wrote: > Thanks for this note! We had updated before this was sent out and > couldn’t figure out why things were not working. > > We have not been able to revert the firmware to the previous version that > was used for the original Spike app. > > I’m curious if anyone knows how to revert back? Or if there have been any > updates on the newer app? > > Thank you! > > On Tue, Feb 7, 2023 at 2:50 PM Skip Morrow <[log in to unmask]> > wrote: > >> *CAUTION: *This email originated from outside of JMU. Do not click links >> or open attachments unless you recognize the sender and know the content is >> safe. >> ------------------------------ >> VA DC FLL Teams, >> Have you had a problem with your Spike Prime Gyro? Probably you were >> trying to do a gyro turn, and the robot just kept spinning and spinning? I >> have heard it from several teams and online, so it is a problem that is >> somewhat widely known. >> >> I did some troubleshooting and found that if you hold the robot while it >> is booting up, almost certainly your gyro will not work. However, if you >> set the robot down for at least five seconds or so, it usually fixes >> itself. Here's a video I took of the problem: >> https://urldefense.com/v3/__https://www.youtube.com/watch?v=wdX1fRHu_nQ__;!!N6YHze6lT7thMl0!Lsw3Z5SgY1W1_9QVGaVRAkpOsizCrsomxX2UwhUXbYdqdMIRfPkqKYON_A7XHHrSkr69t0CeBeP3CkvW0oiuD_ZheDexYlFBszjp$ >> <https://urldefense.com/v3/__https://www.youtube.com/watch?v=wdX1fRHu_nQ__;!!N6YHze6lT7thMl0!OmMud02-6Py74xBxOmQnzieK3N7yOE2Rpygm3EqvO3FiziLSTKKT7_-m36LxIKmdFRTpNdbDAvlzLNc-ZyFIrHK9Dr3mfNRAp5Hk$> >> >> At the beginning, I mention a previous video, which doesn't have much to >> add, but if you want to see it, here's the link: >> https://urldefense.com/v3/__https://www.youtube.com/watch?v=PwnMR-q4M3Q__;!!N6YHze6lT7thMl0!Lsw3Z5SgY1W1_9QVGaVRAkpOsizCrsomxX2UwhUXbYdqdMIRfPkqKYON_A7XHHrSkr69t0CeBeP3CkvW0oiuD_ZheDexYjuRDfAd$ >> <https://urldefense.com/v3/__https://www.youtube.com/watch?v=PwnMR-q4M3Q__;!!N6YHze6lT7thMl0!OmMud02-6Py74xBxOmQnzieK3N7yOE2Rpygm3EqvO3FiziLSTKKT7_-m36LxIKmdFRTpNdbDAvlzLNc-ZyFIrHK9Dr3mfN-K0qS8$> >> >> I have notified Lego technical support, and they have been super helpful! >> I'd like to share the email exchange here >> >> *From Lego to me:* >> >> Hi Skip, >> >> Thanks for the video and the steps leading to the gyroscope issue when >> running downloaded code! >> >> Here's an update of where we are in the investigation. We've been able to >> reproduce this issue with word block coding consistently on multiple robots >> with SPIKE Legacy firmware (HubOS 4.0.0.7). >> >> When following the steps previously outlined, the gyroscope data does not >> update. Hub yaw/pitch/roll data is stuck at 0. >> >> For now, the workaround is what you've pointed out in the video. Add a >> wait block right after the initial program start block. A minimum of 2 >> second wait is needed. >> >> We are in the process of testing with Python and I suspect the results >> will be similar to what you've already found. >> >> Also, interestingly, this issue is not reproducible with SPIKE App 3 >> firmware (HubOS 1.2.10). >> >> Have a bricktastic day! >> >> >> *My Reply:* >> That is Awesome! I am glad that you were able to recreate the problem. By >> the way, you can also mitigate the problem by just letting the robot sit >> still for a couple of seconds before running the program. You don't have to >> do it with a wait block/command. >> >> I am a little confused with the version numbers. You mentioned HubOS >> 4.0.0.7, which is what I have on my hub, and that is obviously where we are >> having the issues. But then you mentioned Spike App 3 and HubOS 1.2.10. I >> thought Spike App 3 was the newest version??? But the HubOS 1.2.10 was a >> lower number than what I have now??? Are you saying that I should upgrade >> to Spike App 3? Or downgrade my HubOS to 1.2.10? Sorry for the confusion! >> >> >> *Their final reply:* >> >> Good to know about just letting the hub wait/sit still for a few seconds >> before starting the program. >> >> Also, I'm happy to clear up any confusion with firmware numbers. Yes, >> SPIKE App 3 has a lower number! It's because SPIKE App 3 has a complete >> rework of the firmware. So the versioning started a new. You can think of >> SPIKE Legacy and SPIKE App 3 firmware as two separate tracks. >> >> >> As for upgrading to SPIKE App 3, for FLL teams, we recommend holding >> off for now because: >> >> (1) No auto-conversion of SPIKE Legacy projects >> >> So right now SPIKE Legacy projects are not compatible with SPIKE App 3 >> and vice-versa. Our SPIKE app team is working on a converter for an >> upcoming update in the Spring. >> >> (2) No Python >> >> A new Python API for SPIKE App 3 is being worked on. So it's not yet >> ready for SPIKE App 3. It will be part of a future update. >> >> >> *Final thoughts:* >> >> If you are having problems with your gyro, perhaps wait until Spring when >> the new software will be released. If you really need your robots right >> now, then absolutely be sure to boot the robot in a very stable place. Or >> be sure to let it sit steady for a few seconds after booting. >> >> Also, do not update your robot to Spike App 3.x until further notice. >> >> Anyway, I thought this would be helpful to some teams. >> >> And have a Bricktastic Day! >> >> Skip Morrow >> >> Coach 24277 >> >> Norfolk Collegiate O.A.K.S. >> ------------------------------ >> To UNSUBSCRIBE or CHANGE your settings, please visit >> https://listserv.jmu.edu/archives/vadcfll-l.html and select "Join or >> leave the list". >> VADCFLL administrative announcements are sent via >> VADCFLL-ANNOUNCEMENTS-L. Visit >> https://listserv.jmu.edu/archives/vadcfll-announcements-l.html to >> subscribe. >> > -- > Enjoy each moment! > > Deborah Heyward > [log in to unmask] > -- To UNSUBSCRIBE or CHANGE your settings, please visit https://listserv.jmu.edu/archives/vadcfll-l.html and select "Join or leave the list". -- VADCFLL administrative announcements are sent via VADCFLL-ANNOUNCEMENTS-L. 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