For the V2.1, V2.0 and Xtreme Stock speedos - at time of writing (because HW change things all the time without sufficient documentation)...
1. Download and install the software package v3.1 -
http://www.hobbywing.com/upload/soft...tup_120517.rar (older installations may prompt you to update automatically)
2. Run the software on your PC as an administrator (right click on the program to get this option, you can also set it to do this every time under the "Properties" option).
3. Wire everything up - Computer to LCD program box via USB; LCD box to ESC via receiver cable; ESC connected to the running battery and switched on.
4. Update the LCD Box first - on the "Device" menu select "LCD Program Box". In the left hand column select "Firmware upgrade". Update to V1.08_120504 (
not the version marked xxx_V3).
5. Next, update the ESC - on the "Device" menu select "ESC". In the left hand column select "Firmware upgrade". In the drop down menu you will have a variety of softwares - 930STOCK is the latest stock motor version with maximum boost; 930MOD is a modified motor version with less boost; 508_NO_TIMING is the "blinky" mode; 205MOD is an older modified software with no boost. These will cover most racers needs. If the update fails (not unusual), try again.
6. Switch off the ESC and unplug the cables. You are now up to date with all the software. As far as the settings go, I would recommend leaving them at the defaults and changing one thing at a time if the feel is wrong. Explaining the settings is another thread's worth of info!
Hopefully this is clear.