This is becoming so common that it makes me feel sick about the number of issues users are reporting just on this forum alone not considering other platforms such as Reddit or Discord etc.

I flashed Betaflight 4.3 earlier on to experiment with some features in the Configurator on the bench but never actually did any flight tests.

Something inside just never made me feel right about upgrading and flying the 4.2 Release Candidates.

I probably would not have noticed as all my FC's have the MPU6000 gyros as I always avoided the ICM gyros due to weird reports about it being extra sensitive for years.

The only exception in my fleet is that I have a quad with the Lumenier LUX F7 Ultimate FC that comes with dual gyros (MPU6000 & ICM20602) and I have always disabled the ICM20602 gyro. Not that it would matter in the case of this bug since it seems that ICM20602 is not affected but we never know till we have more tests and reports.

As was mentioned on the Betaflight github that one of the devs (SteveCEvans) is in contact with TDK to get additional details on how they can unbrick the 4.3 affected ICM 20689 gyros. Fingers crossed.

TBH the Betaflight devs should just put out an RC7 release IMO even if it only contains that one fix because people are flashing their FC's and bricking their gyros completely unaware of the issue, or that they should be flashing development builds which not many people do or will be aware of unless they are closely following the development and bug fixes which many people aren't. There isn't even any kind of warning note against the 4.3 release notes telling people of the gyro issue like there was for the failsafe issue on the earlier RC releases, so how are people even supposed to know unless they are regularly following forums like this or other FPV related news outlets.

There have been way too many bugs in the Betaflight 4.3 release TBH (and they are still growing if you look at the GitHub issues log). I just hope a few lessons are learnt from this for future releases because what has happened with Betaflight 4.3 release (2 years in development so far) has been a bit of a car crash TBH and it is far from agile development. This isn't taking anything away from the devs themselves because they do all of this in their free time to provide us with free firmware to feed our addiction so they should be commended for their time and effort, but behemoth software releases like this really are a thing of the past and are just way too risky, especially when there is limited ability to test so many changes against the vast array of hardware out there. To provide value and minimise risk, the release cycles need to be much shorter and each release needs to contain far less enhancements and fixes to mitigate the chances of something causing a problem, or at the very least to make it quicker/easier to figure out what might have caused an issue with less code changes to debug.

I never understood all the fuss about the ICM20602 gyro. I have that on a few FCs and never had any issues with it. I'm almost convinced that a few people in the community dismissed that gyro as being crap and then everyone else just took that for gospel with word then getting spread that it was a gyro to avoid. With the MPU6000 gyro in short supply and rumours that it's been discontinued, we are going to start seeing a lot more of the ICM20602 and ICM20689 gyros (re)appearing on FC's.

Seen a few posts on youtube that are definitely caused by this issue. The person has flashed RC6 on to a drone with ICM-20689.

One video the other day a person in the comments had flashed RC6 to a Meteor75 and it was now spinning in circles when armed. It seemed to definitely be the gyro. I posted about it and the uploader deleted my comment/post (Painless360). So I also agree, an RC7 should definitely be released with this fix. People are bricking drones due to it and not all are as clued in as I am. Most just follow a Bardwell video and then it goes tits up. Very few seem to use their brains. Sheeple. :/

If not I guess the storyline from influencers will be don't use ELRS because it will brick your drone.

Off topic::

"the uploader deleted my comment/post" has happened to me with a few reviewers when I tried to warn the general public on a few youtube channels or even correct their statements.

I will refrain from naming those channels but I guess they just do not want any negative publicity towards the product they are reviewing.

This is why I don't fall for early release previews and reviews.

^ That certainly happens a lot when the review is more of a sales pitch disguised as a review (lots of that going on!). But obviously that isn't really applicable to betaflight.

Yeah, it really should be in bold red underlined print at the very top of the release notes.

I’m flying 4.3 on 2 of my quads because it just flies so good and has awesome features… but it’s sketchy as hell.

Awesome features are all very good, but not if there is a risk of you losing your quad or bricking something on your FC due to flaky bugs. For now Betaflight 4.2.11 is solid and 100% reliable without any of those worries. When Betaflight 4.3.0 eventually makes it to a final stable release with minimal bugs I will then start installing it on my working quads, but until then I won't.

Sorry, I just joined the forum, and it was here that I found out that I am a "victim" of the problems related to the ICM-20689 gyroscope.

I purchased on BETAFPV a couple of se ttimes ago a Meteor 75 ELRS, I followed their instructions scrupulously, that is : I downloaded from their site the firmware and DIFF for configuration and once done, performed all checks on betaflight accelerometer calibration , switch check, accurate stick centering etc... put battery power on the motors and... uncontrollable on the Yaw axis i.e. it starts like a crazy spinning top and if I give "throttle" it crashes on the ceiling....

I ask: but is the gyro destroyed or is it repairable ? and will BETAFPV respond by replacing it ? I sent BETAFPV a request for technical intervention not knowing that it was better to request replacement. I have not yet received a response and it has now been about 20 days.

Thank you to anyone who would like to give me some advice

(18-Aug-2022, 10:05 AM)clau56 Wrote: Sorry, I just joined the forum, and it was here that I found out that I am a "victim" of the problems related to the ICM-20689 gyroscope.

I purchased on BETAFPV a couple of se ttimes ago a Meteor 75 ELRS, I followed their instructions scrupulously, that is : I downloaded from their site the firmware and DIFF for configuration and once done, performed all checks on betaflight accelerometer calibration , switch check, accurate stick centering etc... put battery power on the motors and... uncontrollable on the Yaw axis i.e. it starts like a crazy spinning top and if I give "throttle" it crashes on the ceiling....

I ask: but is the gyro destroyed or is it repairable ? and will BETAFPV respond by replacing it ? I sent BETAFPV a request for technical intervention not knowing that it was better to request replacement. I have not yet received a response and it has now been about 20 days.

Thank you to anyone who would like to give me some advice

I’m not aware of a fix- you need to reach out to the retailer (or BetaFPV if you bought directly from them) again and tell them that you followed the manufacturer’s directions exactly, and that it is displaying symptoms of what is now a known problem, and request a replacement. Also let them know that you reached out 20 days ago and haven’t had a response.

And once you get that replacement, ignore their directions and come back here and ask what you need to do prior to plugging in a battery.

Thank you, for responding so quickly, I will do as you suggested. I will let you know how it went.

(12-May-2022, 02:21 AM)SnowLeopardFPV Wrote: Below are a list of the FC's I have found that host one or more ICM20689 Gyro chips. Other FC's on the market host an MPU6000, ICM20602, or BMI270 Gyro chip, none of which appear to be affected by this bug.

• Flywoo GOKU F405 & F7 boards
  
• GEPRC Stable F7 boards
  
• iFlight SucceX-D F7 boards
  
• JHEMCU F7 boards
  
• NXTF7 boards
  

I just noticed that I have 2 Zeus FC's that have the ICM20689 gyro. I haven't done anything with them yet...
https://pyrodrone.com/products/hglrc-zeu...i-function

(18-Aug-2022, 10:45 AM)Lemonilebra Wrote: Non sono a conoscenza di una soluzione: devi contattare nuovamente il rivenditore (o BetaFPV se hai acquistato direttamente da loro) e dire loro che hai seguito esattamente le indicazioni del produttore e che mostra i sintomi di ciò che è ora un problema noto e richiedere una sostituzione. Inoltre, fai sapere loro che hai contattato 20 giorni fa e non hai ricevuto risposta.

E una volta ottenuta la sostituzione, ignora le loro indicazioni e torna qui e chiedi cosa devi fare prima di collegare una batteria.

Ciao Lemonilebra, ho seguito il tuo consiglio e ho chiesto la sostituzione del Meteor 75 spiegandomi bene che il problema era noto e non risolvibile. Il supporto di BETAFPV mi ha prontamente e gentilmente risposto chiedendomi se potevo inviare foto e video della configurazione in Betaflight, ho inviato tutto quello che volevano. Il giorno dopo mi hanno risposto chiedendomi se avrei accettato solo la sostituzione dell'FC. Ho accettato perché l'alternativa era l'intera sostituzione che prevedeva il mio reso con tempi di spedizione infiniti. Invece quindi non mi resta che attendere la loro spedizione. Il supporto mi ha anche chiesto se avessi altri prodotti simili con lo stesso problema. Segno che (secondo me), poiché altre aziende sono state costrette a mettere lo stesso tipo di giroscopio nei propri droni, stanno indagando su come sta andando la concorrenza.

PS: appena mi arriva ti faccio sapere....

(23-Aug-2022, 08:31 PM)clau56 Wrote: Ciao Lemonilebra, ho seguito il tuo consiglio e ho chiesto la sostituzione del Meteor 75 spiegandomi bene che il problema era noto e non risolvibile. Il supporto di BETAFPV mi ha prontamente e gentilmente risposto chiedendomi se potevo inviare foto e video della configurazione in Betaflight, ho inviato tutto quello che volevano. Il giorno dopo mi hanno risposto chiedendomi se avrei accettato solo la sostituzione dell'FC. Ho accettato perché l'alternativa era l'intera sostituzione che prevedeva il mio reso con tempi di spedizione infiniti. Invece quindi non mi resta che attendere la loro spedizione. Il supporto mi ha anche chiesto se avessi altri prodotti simili con lo stesso problema. Segno che (secondo me), poiché altre aziende sono state costrette a mettere lo stesso tipo di giroscopio nei propri droni, stanno indagando su come sta andando la concorrenza.

PS: appena mi arriva ti faccio sapere....

Awesome, I’m glad they’re doing right by you and sending you a new FC. Once it arrives, follow the directions here:
https://intofpv.com/t-psa-do-not-power-u...ading-this