Easy Way Out!
Possible calibration procedure:
1. Put both values high (will show FAR).
2. Cover sensor with finger.
3. Lower High threshold till it says NEAR.
4. Lower Low threshold by a notch or 2.
5. Test behavior.
Different person will guide you different ways.....that's their way to explain,no offence here.And sometimes different ROM could also requires different calibration,best way to do it is mentioned above.
Example: I'm on AoCP my own custom way made look of 4.2.2 kitkat*
I've OK Google working and Everything as stated in KitKat.But obvious im on 4.2.2 instead of 4.4.2!
In this ROM ive sets Lower @ 13 and Higher @15 but it could be different by user to user.
STOP AT NOTHING
Obsession Takes Men To His Limits © Dr.Ronak Patel(Myself)