I bought Crius MultiWii SE v2.0 from Quadkopters.com for my quad. It was preloaded with firmware 2.1 and worked well when i first connected it to computer. After completing my quad build, i connected it to the setup and it's not working then on.. While connecting to PC, it simply lights up both the RED and GREEN LED and stays on continuously. Even in MultiWii Config tool it isn't showing any details but just a dark brown line when start.... Can't figure out what had happened.......

The exact same thing happened with my flight control board. i also used the same Crius MultiWii SE v2.0 from Quadkopters.com.
Anybody PLEASE !!! help us..

Not sure if this is the problem... but food for thought !

http://www.multiwii.com/forum/viewtopic.php?f=6&t=2863

even i have same board from quadkopters.com,it is working good.just reflash it with multiwii 2.1 code.in config.h file,change sensor to mpu 6050 and change sensor directions.that should work

thx aman nd abhilash. i'll sure try this

i have tried abhilash, but no use.. Please upload the code you are using now. And upload your build log if possible.. 

thx anwar sir. Still i can't figure the problem.. Is there any thing i could do to bring my board back to normal???

hello gkprashu,see this thread http://www.multiwii.com/forum/viewtopic.php?f=6&t=2435
in that page ,see 3rd reply from patrickE.follow the same thing.