6-point accelerometer calibration broken in 1.9-RC1

[furiousfpv]

I'm using F35 with MPU9250 sensor in fw 1.9, after finish 6 steps, my board can not level.

When i use FF_WING fw 1.8 and do calib in 6 step, it worked great, board can level. Can you help me check again with calib process in MPU9250 sensor?

[digitalentity]

Will test. Are you using the Configurator 1.9.1 ?

[furiousfpv]

In fw 1.9, i used 1.9.1
In fw 1.8, i used 1.8

[digitalentity]

Ack. Will test and get back to you ASAP

[furiousfpv]

My customers have same issue with calib process, https://drive.google.com/open?id=1-L-KMOah_carw_SIp7FWPumnAZh25kmh

Thank you so much @digitalentity

[digitalentity]

@furiousfpv try doing a full erase when flashing 1.9. Helped in my case.

[furiousfpv]

@digitalentity Yes, i tried many time with full erase. Same problem.

[furiousfpv]

@digitalentity BTW, i tried with FF_FORTINIF4 worked great with 6 steps calib. Board can level and all axis are good. FortiniF4 use MPU6500 library.

[brat002]

I don't really know if the bug is similar, but my friend also got an very strange behaviour last week https://youtu.be/ZQlX_PnT1fE?t=36. Horizon started to behave like crazy. We seen that at least 3 times during 2 weeks.

Matek f405-ctr
Inav 1.8.1

[digitalentity]

Bug confirmed. Some other boards seem to be affected as well.

[digitalentity]

Found a bug. Fix pending.

[furiousfpv]

So cool, Can you give me target file of F35 for test? @digitalentity

[digitalentity]

@furiousfpv sure, once I make a proper fix

[furiousfpv]

Can you finish today?

[digitalentity]

@furiousfpv hex for testing
inav_1.9.0_FF_F35_LIGHTNING.zip

[furiousfpv]

It worked great @digitalentity . Thank you so much.

[digitalentity]

Good to hear! Fixed.