All... Use the Zero Cleaner: clear cache from Red Soft. Works perfectly fine.

this C9Pro is just good phone but its got a shitty camera, no sPay, low sound output, lagging fingerprint sensor. my galaxy note 2 had better hardware and features than this C90 pro for which i paid 37k rupees.

dear admin...the so called customer support...i know you've got a job...but that doesn't mean you copy paste some irrelevant lines.