The 8 pitch-pumps on power-up indicates the accelerometers have failed the power-on initialization test on the controller.
I have used ikon for a long time with no problems with the bail out
I switched my 700 n to my new dx9 and HAD TO update firm ware to make settings . now it bails out up side down or side ways . after a fue flights the bail out no longer works and the head pumps 8 times on power up . I have seen this in 5 other helis . I thought is was due to vibration . my 700 n was fine right up to updating the soft ware . the common link is all the outer 5 helis are running the new soft ware .
is any one else: having the same problem ??
When the accelerometers fail, "Rescue" is disabled.
It was not the firmware update that caused the failure.
But the new firmware added some additional power-on self tests of the accelerometers to make sure they were ready for "Rescue" or "Auto Level"
The accelerometer failure may be related how the gyro was mounted on the heli or a past or recent crash.
For nitro, your best bet is to use the Futaba FUTQ1000 Gyro Pads for mounting the gyro. Anything else is not recommended by MSH for nitro.
But, changing the mounting pad isn't going to help resurrect the failed accelerometers.
I am not sure why you see it on 6 heli.
Except the common thread may be the age of the iKON controllers, how many times they have been crashed and the frequency of firmware updates (or lack of updates).
The MSH controllers have a set of 3-axis accelerometers and a set of 3-axis gyros. They are separate from each other.
The gyros are used for stabilization and the accelerometers are used for rate of change.
You can fly it without the accelerometers.
Unless you see some odd flying behavior, the gyros probably still work fine.
For MSH (iKON / Brain), "bailout" is related to "bailing out of an aborted autorotation" and not "Rescue".
There are a couple "voodoo troubleshooting" methods that can bring it back for a while. But, the 8 pitch-pumps will return at some point.
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