Hi, have you make it work with the 850 or change it to the 840? I'd been searching around and the only thing I found is a problem with the voltage. Thanks.

I have the same problem, after a day on rice it turned on for a while to show the link to www.bberror.com/bb10-0020 I bought a new battery, but now it don't even show the led light. Any one know how to fix this? Thank You!