Hello everyone!
This data will definitely help with tweaking your GridSeed 5 chip USB miner/s.
I just received this data from GRIDSEED via HASHRA.com today. 3-13-14
I'm paraphrasing for general clarity.
I've also added some of my own observations based on direct experience with my own GS5's.
GRIDSEED GS3355 5 Chip USB Miner - Flashing
RED and
GREEN LED's - What They Actually Mean.
All timings are either approximate or exact, if not darn close!
Your clock speed may vary slightly.
GREEN flashing LED means - 5V is ON / drive electronics are powered up.
GREEN LED is ON for 1 second, OFF for 1 second.
RED flashing LED - ON 3 seconds / OFF 3 seconds means - Miner Is Hashing /
Processing Data.
RED flashing LED - ON 60 to 70 seconds - OFF 60 to 70 seconds:
Miner is Not Hashing / Processing Data.
If Fan is OFF and
RED LED IS STUCK ON or OFF i.e. not flashing:
12V is OFF - 5V is ON.
FAN is ON but no
GREEN OR
RED LED's are flashing ON or OFF, means:
12V ON - 5V OFF.
When first powering the miner on, the best sequence I have found is:
First, 12V ON
Second, 5V (USB POWER) ON
After 5V power is turned ON, after a few seconds, the
GREEN LED's will start
to flash ON/OFF as written above.
After 12V power is turned ON, in about 60 to 70 seconds,
the
RED LED's will start to sequence ON/OFF as written above.
Hope this helps!

Peace
Wolfey2014
LR6U7jB2Fb4pJYogbergqQHZgBRQ5UAqBG (LTC)
1G9uTT2YvygQXPMw4CaLWPJmg6asJBqM5f (BTC)
DMtMWd492Y4PrzZBA6fvkXywnGtgNcFdBd (DOGE)