HIT LIKE if it really help:)
yeah use R@@t Explorer and go to /data/direct_inject/
in there you should able to find some LOGS... see the picture for example.
make sure u view it and verify it is succesfully loaded.
NOTE: PLEASE update the BUSYBOX to the LATEST version using "Busybox Free" included in this version.
After update then restart. Verify NOS-Injected by going through the LOG at /data/direct_inject/