Hi everyone,

I have a problem with my IRIS+: it flips on a side when I am trying to take off. I take all the precautions: don't move it on startup etc, recalibrated esc, compass, acc... with no result at all. Any ideas?

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Is it flipping to the side or to one edge?

In the latter case it could be a motor that is not working well

It behaves as I have applied a massive amount of roll and also, throttle response is very violent- 20% of it is enough to cause a flip

Post a log and it might help narrow down some of the possibly issues.

If it is the original iris+ firmware that can happen.

Hi guys, I'm a beginner with the Iris+ and new to this group. I've got a new Iris+ and have had about 5-6 good flights so far. Today, I had it flip twice on me, dinging up the propellers a little bit. It seems to be flying ok now, but unsure of what caused the flips. I think I may have lifted it up to turn on the GoPro (haven't attached Gimbal because 3DR didn't send bolts with it) Do you think picking up the front could have caused something to flip it?

Also, any other steps I need to take before the next flight? In case anything was messed up during the flips/crash?

Cheers!

Hello Michael

what do you meen with "If it is the original iris+ firmware that can happen" ?

Is there a new firmware, which is recommended by 3DR to flash on the IRIS+

Up to now i thought the firmeware of the IRIS (AC3.2-iris) is something special from 3DR and should not be updated with the firmware out of Mission Planner.

Hartmut,

The Iris+ was ready to be released before 3.2 was ready, so 3DR used one of the beta versions and thoroughly tested it to ensure safety and reliability of the firmware and used that version of the firmware until the official version of 3.2 was released.  Once 3.2 was officially released, 3DR recommended upgraded the Iris+ firmware to the official 3.2 version as there are several fixes that addressed issues people were having.  As Michael stated, one of those issues was flipping over on take off if in a GPS flight mode I believe.  Another issues pertained to people flying in cold temperatures.  If you have an Iris+ with the original firmware, you should definitely update.

Hello Dax

a look in my log file shows me that firmware on my IRIS+ is "ArduCopter V3.2-Iris (b212c020)"

Should this be updated ?

Yes. That's the old Iris version of 3.2. The latest stable release of 3.2 has several bug fixes. You should update.

Dax,

Do you know off hand what the recommended version of 3.2 is to update to? Is it ArduCopter V3.2.1 (36b405fb)? That is what is on mine and they seem to flip some times on take off as well.

Wow Jesse, digging up an old thread. The last stable version of 3.2 was 3.2.1; however, the latest stable release of the firmware is 3.3.3 and it's very good. They have made numerous enhancements to make the flight experience more reliable, all the way from takeoff to landing. If you have a 32-bit FC (Pixhawk), upgrade to 3.3.3; however, if you are using an older 8-bit FC then 3.2.1 will be the last firmware you can upgrade to.

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