Same problem…. sometimes my screen stop working….I shifted from Realme narzo 20 pro to cmf phone 1 and this was my biggest mistake…I m noticing this since day 1 but service centre is located approximately 40km away from my home……smearing,green tint, temporary image retention,touch unresponsive are some issue which I face since I bought cmf…….My money Rs. 16k+1500(charger) was wasted man literally regretting🙃 there are many good option like iqoo z9s,poco x6,Narzo 70 pro,Lava agni 3 But I chose CMF which did the most wrong thing.