Share your experience!
Okay then., i'm okay with not being able to set ISO at front camera.
but the front camera used to be better than now before the update.
Thanks for the explanation 
the first photo took in strong light condition MANUAL MODE AUTO ISO. and the second photo after cropped looks like unnatural, less detail, blurr when zoomed and cropped.
Well., I also got the same even after I asked my sister who really good at tuning ISO and exposure still blury image
must be software problem then 