Gridseed LTC mining

Hello there.

I found 2 Gridseed (5 chip) lost in my stuff and they seems to be working, but can't make them mine any LTC.

I'm using bfgminer 3.10.0 and Litecoinpool.org pool.

Here's my .bat file:

Code:

bfgminer -S gridseed:all -S opencl:noauto --set-device gridseed:clock=850 --scrypt -o stratum+tcp://us.litecoinpool.org:3333 -u [s]user[/s].[s]worker[/s] -p 1

When I run the .bat file, I don't get any error message. Here's the .bat file running:

I've let it mining overnight one day but the Accepted Blocks was at 0.

Can anyone help me with that?

Thanks.