When you were charging it, was the charger red and go green like normal charging or green right away?
Another test to determine if it's the bms or controller is to open the battery pack and unplug the bms, connect the battery output directly into the controller. If the board turns on and balances then it's a bms problem, if not then it's the controller.
Also check the battery pack voltage, should be around 62 volts.
The bms controls the on-off function.

If the bms is your problem and you can't get a bms quickly, do a bms bypass to get you riding temporarily.

@chet_boii
Supposed to be small bearing 6203 (17x40x12 mm)
Large bearing is 6906 (30x47x9 mm)
My mistake on the 6203 (since edited) and yours on the 6903.
I have a bunch of new medium quality 6203 and I can send you one for free

I redid the grip tape on my Onewheels.
The "Back to the Future" is a complete kit from Fluxskinz. The Mattel symbol is my own.
The other ones are "design your own"
The Kemper is one of my first snowboards way back in the "80's.
The WW2 Donald Duck grip tape is temporarily taped on for now.

The only problem is the grip tape is thicker than the original and is very sensitive to feet position and rider weight.

Update:
Finished the Pint in miliary dress.
Canadian eh?

That 63.6 vdc is close to my xr charger (63.4 v) on the green light. Whether or not it will work properly when plugged in the board is something I can't answer.
$1500 vs $100 ?

@fosterqc
75 volts should definitely make the V1 faster and brushless motors can be over overvolted and still survive.
I was thinking of a gas motor add-on and make a "hybrid" but still haven't been able to make the Ardruino and gyro move the servo for the throttle fast enough. Anyways, it's just an idea.

@Lia
That sounds doable with a generic 14s bms for charging and balancing but not for discharging. Discharging straight from the battery pack.

@Senior-Coffee
Sounds good. A bms seems to cause problems.
Good thing all my Onewheels are "hackable" unlike newer ones with "married" battery, bms and controller.

@fosterqc
I'm sorry, but that's the only picture I took of the stator and V1 motor is assembled now. I'm just waiting for parts for the broken BMS.
Too bad you sold the controller as the wheel will work with a by-passed bms, just need a external type of switch to turn it on.

@lemur
Tore into the old noisy V1 motor today, here's what inside a Fluxcore 500 watt motor.
The seven allen head screws are red loctited in, so use a good quality allen wrench.
The motor magnets look like they're covered in plastic and stator is potted.
The small bearing is rusted and rough and that's where the noise was coming from.
Small bearing is 6203 (17x40x12 mm)
Large bearing is 6906 (30x47x9 mm)
Both bearings are common and top quality will cost slightly more, but still under $20 each max.
Very east to replace.

@blkwalnutgrwr
Good to hear that a bms bypass works for the long haul. Thanks.
I just ordered some mosfets and mosfet drivers to try to repair the bms.
They were under $15 for a whole bunch. If that doesn't work, then it's the bypass.
I thought of a lithium ion bms, but the cut off voltage is too high for iron phosphate cells leading to early cut-off and crashing.