I had Screen Burn-In issue on my ROG II phone, which was 9 months old (Small blurry spot began to appear on screen) Model Name: ZS660KL-1A017IN Firmware Version:WW_17.0240.2007.27_0 Rooted or not: Not rooted. Asus Service Centre guys in Delhi took a week to replace the screen & now issue is settled (Obviously covered under warranty). Good 👏🏼 However, on receiving phone, I noticed NIL history in Battery history. I charged battery to full. Now I notice less battery % decrease. Previously, whenever I charged phone in recent weeks, it quickly went from 100% to 99% in 1st minute & gradually decreased. Performance was good though. I think Asus has also replaced old battery with new, which is a good thing anyway. Anybody has knowledge on this? Needed clarification.