- Sat Jan 16, 2021 3:15 pm
#50759
hello and if i change the stm32 to a new blank can it work once i write the cracke file?
An Electric Scooter Community on a Mission to Stamp out Transportation Mediocrity.
Hello SneakX,
own experience and tests.
I dont think you have a chance to be succesful with this, as far as I know, the conversion between greenbox and ESC is secured over challenge - response, google for it if you dont know what it is. the only way would be to reflash the combox with a firmware from a older one, but I dont know how to dump and then flash the firmware of the combox.Bug_meh wrote: ↑Sun May 23, 2021 10:05 amOk I start to understand the problem. So, on newer scooter, we can flash the controller but the combox has been upgraded from V2_3_0_0 to V2_4_0_0 and due to that it's not working anymore, and since we can't extract the firmware from an old combox to a newer one, we are stuck...., hummm.....
maybe we can emulate the behavior of a combox (V2_3_0_0) on newer scooter that have been patched with the unlocked firmware... here is the idea....
What if :
1. We ask someone who have a working version of the combox (V2_3_0_0) and a controller with unlocked firmware running) to capture the traffic between the combox and the controller (black cable on the combox) on all six wires, with a logic analyser.
2. Then write some code that will run on something like an Arduino nano that replicates what we have seen in the capture.
3. Replace the combox (V2_4_0_0) on newer scooter with the Arduino nano.
And maybe we can even reuse the display cable to connect it to some RaspberryPI.
Do you think that could work ?