Hi,
one of the Segway I bought seems to be ok after fixing the broken handlebar, till I have lowered the handle-bar to minimum height.
I could disassembly that handle-bar and replace the two wires (ends with black and yellow connector) easily.
It seems some inside the wire some of the contacts not working very good (I guess this is a common problem)
These 2 wires are connected with connector that is covered by heat shrink (which can be cut if doing it with care)
I had 2 wires from another device that looked better to me
Things to remember is to make strength relief with a binder same way as you open it, also to bend the connector wire and use tape & cable tie to connect everything good when closing it
There is a 5mm screw at the top of handle-bar which should be removed in order to get to these wires, also need to turn the handle bar 180 degrees to release the wires
Thanks,
R