Brose T shutting down after derestricting

[Azimuth]

Hey guys!

First post here.

I did the speed sensor repositioning in my E-ST900 from 2021 (Brose T) to bypass the speed limit, and it works great, except, after some 15 minutes the assistance shuts down and I need to turn off an on the controller to get it immediately working again.

Any idea of what it could be? I don't get any error, could it be some sort of "cheat" protection from the firmware?

Thanks!

Disclaimer: My bike is used in non public roads only and I comply with all the local regulations.

 

[Azimuth]

Anybody?

 

[aarfeldt]

How is it supposed to work ?

 

[Azimuth]

Hi, not sure if I understand what you mean, but it is supposed to work with assistance up to 25km/h ( original mode ) and I just did the crankshaft magnet/sensor repositioning trick.

If I simply cycle off/on the controller, it works great again.

It seems to happen at a steady time period.

 

[aarfeldt]

..... I just did the crankshaft magnet/sensor repositioning trick.....

^^ And what is that ?

To me it sounds like the distance between the pickup and the magnet is too large.

 

[RickBullotta]

Seems like the software is detecting the hack and shutting down.

 

[Azimuth]

I already tried adjusting the magnet/sensor. It also seems to me the software is detecting the hack, since it seems to happen at a fixed time period...

 

[Azimuth]

Shit, I guess that we are in 2021 the same way we were in the early 90's with combustion engines and fuel injection ( at the time it seemed complicated but I still own a 90's car with all that "simple" electronics these days ).

If I was a Brose employee I would be having a laugh with this kind of threads.

If I can't solve this I will build my own e-bike next time.

Strange times we are living these days. When I was younger everything was about making the most of the little processing power we had with existing chips/electronics. Now there's a lot of ( too much ) room left for limiting and controlling.