XR Controller swap question

[cw_o]

This might sound kind of dumb, but I just wanted to see what y'all had to say.

I recently bought a broken onewheel XR with controller issues, so I ordered a replacement controller and slapped it in, but now the board is acting weird and not turning on.

This is an image of the replacement controller

And this is the broken controller I took out of the board

I realize they look different but I kind of assumed that if they are both meant for the XR that it shouuuuld work fine but I am now seeing that is not true. I was hoping if anyone here has any experience with these controllers if theres any way to get it to work for my board or any comment really

Thanks all!

[Lia]

@cw_o Did the seller say what hardware revision it was. It looks like it's pre-serialisation but the 4210-4213 models complain about mismatched BMS's. It can be worked around with additional modding but it's a factor.

4206-4209 are fine so if it's one of those it'll be a simple swap.

[Lemur]

@cw_o The replacement looks more like a Onewheel Plus controller, check the big capacitors, they should be marked "80 volts'' for a XR , if they are 60 v then it's a Plus controller.
A later 4210 and up Xr controller will have 4 silver 80v caps instead of 2 caps.
Pictures of a Plus contoller and a Xr 4210 controller.

[cw_o]

@lia The guy said he is going to see his friend who sold them to him on sunday, so I will let you know then.

[cw_o]

@lemur Yeah you might be right that looks just like the replacement. Once I get back home I'll open it back up and check -- maybe I can get a refund if it turns out to be the wrong controller 😅

[cw_o]

@lemur Welp, it looks like you're right. The capacitors say 63v. I think i'll try recalibrating the original board tonight as you reccomended in the other feed.

this stinks!

[cw_o]

Quick update for those interested-

I just tried the recalibration on the wonky board with no cigar, it actually ended up just messing up the roll somewhat, so I do think that the IMU on that board is toast.

Sooooo that kind of leaves me back at square one..... with no leads on new controllers.

However I am in college right now, so I may be able to find some workshop or something to help me replace the IMU - so if anyone has experience doing that tips or a guide would be very appreciated!!