After riding for awhile I realized the extra speed and power aren't needed for normal driving, so I'm running stock DRV151 for now. Keeping the more powerful flash on hand though, just in case.

Newer ES4 with potted ESC and 0 link resistor.

Can you flash the various firmware without the drive motor connected? I assume there would an error code or 2, but will both batteries and the esc take an update?

Thanks

1. I read that BMS141 and DRV139 play nicer than DRV133, so I'm running that now, with firmware from here. 20mph top speed (feels crazy), 46000 power. 2. Didn't know android couldn't work the lights, grabbed my work iPad, there are the controls. 3. I've seen that the charging thing is an issue that ...

Got a newer Jump ES4 from auction. Flashed the dash with the tut and STLink. I then changed the serial number and flashed the batteries with BMS141, BLE107, DRV133. The control board is potted with clear gel, and the B- fuse that causes the headlight/top speed issue was a 0 ohm link. 1. Would be the...