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Ninebot Z10 won't stop shaking


Geowats

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I was out on a ride a couple days ago and was slowing down (going down a steep hill) coming up to a light pole to stop and push the button to cross the street (at a crosswalk) when my Z10 just started SHAKING! I got off and walked it over to the side of the road.

I tried a reset through the app. Nothing.

Then I tried a manual reset: turned it on while stabilizing it, held down the power button for 4 seconds, it beeped, let go, then held down the power button again for another 4 seconds, made a confirmation sound.

Nothing happens.

Made a video of it this morning (of how it shakes).

Does anyone know how to fix this issue? I've been online most of the day and couldn't find any answers!

HELP!

Much thanks!

George

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6 hours ago, Geowats said:

I tried a reset through the app. Nothing.

Then I tried a manual reset: 

You tried recalibrating the wheel, too?

6 hours ago, Geowats said:

Does anyone know how to fix this issue? I've been online most of the day and couldn't find any answers!

Does shaking change or stop if you "squeeze" the shell?

Can you "move" the pedals against the shell - do both "feel" rock solid or maybe one a bit loose? Does shaking change/stop if you "apply different pressure" on the pedals?

Such shaking can arise from loose parts.

Like loose axle, pedal/inner shell mounting, cracked/broken (inner) shell or motherboard fixation - everything that disturbs the feedback loop between motor movement and gyro output.

Such mechanical probs should be detectable with thourough inspection and some trials.

Could be of course some whatever other electrical problem - hard/impossible to really diagnose/detect for ones like us without an electrical "labor" and detailed motherboard/firmware knowledge. But inspecting all connectors/wirings and components/PCBs for visual abnormalities could maybe give some hint.

If you find/see nothing maybe a new motherboard could help?

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For me it looks like a broken hall sensor - a loose Motherboard would shake more violently without such "sweet spots".

One of the sensors seems to send no data what leads to position loss on every third impulse. 

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Thank you guys. You have all given me some things to investigate. I will do that investigation over the next week. Have a busy week with work but will check all those things and get back to this post!

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On 11/2/2021 at 12:09 AM, Chriull said:

You tried recalibrating the wheel, too?

Yes

Does shaking change or stop if you "squeeze" the shell?

No

Can you "move" the pedals against the shell - do both "feel" rock solid or maybe one a bit loose? Does shaking change/stop if you "apply different pressure" on the pedals?

Pedals are solid

Such shaking can arise from loose parts.

Like loose axle, pedal/inner shell mounting, cracked/broken (inner) shell or motherboard fixation - everything that disturbs the feedback loop between motor movement and gyro output.

Such mechanical probs should be detectable with thourough inspection and some trials.

Took the whole thing apart. Nothing loose at all. Appears to be electronic.

Could be of course some whatever other electrical problem - hard/impossible to really diagnose/detect for ones like us without an electrical "labor" and detailed motherboard/firmware knowledge. But inspecting all connectors/wirings and components/PCBs for visual abnormalities could maybe give some hint.

If you find/see nothing maybe a new motherboard could help?

 

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I asked this question one month ago. According to Jason at eWheels, the hall sensor is in the motor.


-------- Forwarded Message --------
Subject:     Re: Z10 parts. 
Date:     Sun, 3 Oct 2021 10:03:04 -0300
From:     eWheel Sales <sales@ewheels.com>
To:     [litewave]
CC:     eWheel Sales <sales@ewheels.com>


The motor hal sensor are part of the motor assembly, however, they do terminate on the Driver board. We can have one of those Expressed out you on Monday for $85 if you wish, but no guarantee it will fix the problem. 

Controller failures on the Z10 were not much worse than on other models, like the Gotways.

Jason 

On Sat, 2 Oct 2021 at 15:41, [litewave] wrote:

    Hi eWheels,

    Does the driver board contain the hall sensor?

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Most motors have some usual standard sensors mounted on a small pcb. 

If you're fearless and not equipped with two left hands, it should be possible to replace one or all three for a very small budget by yourself. 

I think the Board itself is okay - I had the same problem on my rockwheel a few months ago - there was one sweet-spot where it was balancing well, but a little forward or backwards began shaking, and stopped shaking immediately when going back to the spot where the influence of the broken hall sensor-signal plays no role. 

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So I replaced the motherboard today and when I powered the Z10 up the front lights flashed blue, the power indicator was empty and the bluetooth logo above it flashed. Doesn't do anything now. Is there a way to get it working? I'm thinking it should be like a brand new wheel. Is there an initiation process for a brand new wheel?

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  • 2 weeks later...

I believe if you install a new motherboard you must pair it with the rest of the device, the serial number in the new motherboard firmware must be changed to match your old serial number. I think the app that unlocks the speed for the device or change models from z6 > z10 (the ninetool) also let's you change the serial number.

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On 11/9/2021 at 11:03 PM, Geowats said:

Took the thing apart. Nothing loose.

Are you 100% sure the axle nuts aren't loose? A similar shaking happened to a friends Z10 and it was the nuts, but I have to admit, the fact that yours has a 'sweet spot' in shaking may well suspect the hall sensor being dodgy.

If you have fitted a new board you 100% have to get it paired or it won't work. Sometimes the supplier of the wheel can help with this, or you have to use Ninetool as Osi says. I don't know the exact procedure as I have never done it, but I would suggest contacting @MRN76 as he is the guy who made it all.

Edited by Planemo
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Also the problem can be because of the MOSFET. Look, if there is one capacitor broken. It is the board that is below the motherboard.

photo-2020-11-26-18-53-20.jpg

The round things that look exploded are the capacitors.

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  • 8 months later...

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