Yesterday, i want to flash my w850..
But when i connect the phone to PC, it didnt connect..
So i borrow my sister's w800, and try to connect, the phone connect!!

I try again with my phone, but failed..
Whats wrong with my phone?

For info: if i want to file transfer, the phone connect..
But only when want to flash, it didnt..

I think my english bad, so im sorry