Strange problem....

well, after using my new mamba monster once i have come across a problem. When i was using it i didn't seem to have any brake, strange, i thought, but i figured i could fix it with the programming...

Info on the car and the use its had:
Hyper 7 conversion. 2650kv motor on 4s. geared for 40mph (11t pinion)
only run within my house so far... for about 5 mins, so nothing had the chance to warm up...

i went to program it today (again, for the first time, just to see what can be done) and it suggested that i upgraded the esc firmware, so i did. (using castle link software)

so i plug in the castle link, with nothing else attached to speed controller (i'm guessing i dont need battery attached to program?)

When i push update the castle link software says
status: waiting
then:
error communicating with device: did not receive a response from controller. try unplugging and reconnecting device,

While this is happening, the little red light on the castle link flashes 3 times, and with each red flash the orange light on the esc goes out.

I have tried reconnecting many times, i even re installed the castle link software.

Just tried to install new firmware 1.24 (beta) and its saying update failed and the red light on the castle link is coming on solidly...

Now when i plug my batteries in the controller does nothing. I really hope it isnt broken :( got a race coming up and a big bash day...

Anyone experienced anything like this?

Any of the tech guys heard about this?

thanks for the help guys... i hope it hasn't failed... no smoke, no fire, and not alot of use so far!

Joe