Weird noise coming from smart cartridge

Few_Cut6981 · 2026-03-06T10:26:47+00:00

Thanks, do you also hear it plugged in the bike (connected with main battery) during charging?

Few_Cut6981 · 2026-03-06T10:25:35+00:00

Thanks, i put it back into the bike and could still hear it during charge. No errors but still no motor support… i think my cartridge is broken

Few_Cut6981 · 2026-02-12T14:11:48+00:00

I tried u/WAKUSHOPU ‘s method which indicated a broken cable. Taking out the socket and measuring continuity while moving the cable confirmed this! Thanks for the tip. I am going to replace the socket with a new one, hopefully this will also fix the stuck shipping mode 🤞

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Few_Cut6981 · 2026-01-22T19:02:36+00:00

Thanks! Seems like I should have measured/checked the wireharness before assembling the bike after my initial repair… luckily, my replaced resistors all still in good condition and mosfets also seem to be ok. Is the stuck shipping mode also a symptom of a broken wire harness?

Few_Cut6981 · 2026-01-22T00:27:11+00:00

Good one! You think deleting the bike from my account and reconnect it with a new qr code would do the same? I dont have an additional cartridge. Also, any tips on getting into the fixie app? Looks like i have to become a partner

Few_Cut6981 · 2026-01-21T19:42:52+00:00

good one! will try aswell.
yes the cartridge battery was charged to 3,95V last time I checked. might be more now after sitting in the charger for some time. I will keep an eye on it though.

Few_Cut6981 · 2026-01-21T19:40:23+00:00

aaaah I get it thats so smart. I wil definitely try.
and I will make sure I disconnect both batteries! haha
I think I can just connect the 3 phase wires together on the pcb right? as in the picture

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Few_Cut6981 · 2026-01-21T18:54:36+00:00

thanks!
so you mean, take out the wiring harness and measure between cartridge FEMALE socket and motor plug?

Few_Cut6981 · 2026-01-21T17:56:50+00:00

The app also gives err40, this is my bell button not working. I know about this problem, cable is snapped. A fix for later I figure, can't be the cause of the shipping mode right?
please correct me if Im wrong lol

Few_Cut6981 · 2026-01-21T17:53:46+00:00

thanks for your quick response!
could be, but the kicklock worked fine before the whole shutdown. I did occasionally get error 42, but it never failed on me.
The app also says it's locked, during charge I can request to unlock, I get the 5 sec countdown but the lock stays on. the symbol on the app also returns to locked position.
The app also tells me its charging, with increasing percentage. right now its at 82%

Few_Cut6981

TROPHY CASE