yes, i've read about this nbh tool thingy, but afaik, this requires us to be s-off before we can use this tool? or am i wrong? coz i am currently s-on.i've been planning to go s-off for ages just for the sole reason of using a screen calibration tool such as this..but time is my opponent here. lol..i want a long vacation so as to return to stock, do s-off..so whatever the consequences i will have the time to troubleshoot if ever. but anyway, thanks for your response. i almost forgot about this tool. i also encountered a screen recalibration tool apk that was once posted here and discussed by
@ganeshp