Archived: the OG noob question thread! 😀

I have the unity tool now, but for some reason I’m having a hard time setting up sensors. It keeps saying bad flux lineage reading, try again. Do I have to remove the belts?

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I believe yes

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Belts off for detection.

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I fucking love boltdepot.com. I placed an order yesterday, and then realized I’d forgotten one item, so I had to make a second order, and was grumpy about the extra shipping.

I just got an email that they had combined both my orders for me to save shipping.
Without any communication from me, no less. Rockstar level customer service right there.

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![b5111d4b9b9bb036ed59f2e8df438a528cb33d76|338x499]

@M.Hboards @Dareno

Can it be i wired the B- wrong and shouldn’t it be like in the last picture?

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The revised photo/proper diagram tells the story.

I tried that pad but still no change

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Look this is a pack for a personal board of mine, all I need for now is for it to charge…

do you have another battery to try the bms on.

I would still try another battery just for the sake of trying since this already makes no sense.
have you tried to see if the voltmeter reads anything off P- on the bms and positive wire (red) of xt60/90?
and then with B- and positive wire (red) of xt60/90?

yes 48V

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I don’t know then : (

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I just span the wheels worked fine

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@Jacob I did mine with belts on. Make sure your cables are secure and give the wheels a good strong spin and see if it fixes it. If not, send photos of your motor detection results.

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This is the dented guy

Edit: I have no way to open this and look at the PCB, the shell is welded closed

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Doesn’t look too bad to me. You could crack the case open and check out the insides but it may be siliconed tight. I’d hook it up to a battery on the bench to make sure it boots and no magic smoke pops out.

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Just hook power across and see if it trips?

That’s the plan.
Or put it in your board and have a ride and see if it trips.
Both options are viable.
One might have more views on Youtube :smirk:

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Is there a B- silk screen on the bigger pad?

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Lol, I just wanted a small 12s BMS…why is is so much hassle, and why don’t they make the 36mm x 63mm version like they do for 10s :sob::sob:

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I will check that when i can, but i soldered the wire to it without hassle