You are same with my thought that this Note4 will save battery w/o much tweaking to the phone system. It is now so irritating to kill background task, rooting, greenified the phone and etc. most of the times in order to save battery. Paying 2.5k we are the one to serve this phone instead of this phone serving us. Daily use experience wise it is worst than Note3 as to concern about its battery level and worry for when and where to charge the phone.

Sorry to say that Samsung. If next update to Lorripop you dont resolve this problem, I believe this Note4 could be my last Samsung Note as I really dont want to be the slave of Note4 from time to time feeding it juice!!!!!!

** Update on my previous case regarding yellow tint problem **

Previously, I've sent my phone to SC because of yellow tint problem. After 2 days, the phone is ready to collect. Then when I check, the yellow tint problem is still there although a little bit reduced. They change the LCD part. On the next day, I once again visit SC but this time I insist for them to replace my phone on one to one replacement basis. They say must wait for management's approval approximately 2 weeks. Yesterday, I call SC to ask about latest status of my case. They say can collect immediately. I check the phone as usual. Yellow tint problem gone. They inform that the replacement was rejected and just calibrate the display. When I ask how to calibrate the display manually, they refuse to tell because it is only for internal use. There is one more problem. My metal bezel got dent. I sent my phone in perfect condition but when get back, there is obvious dent on the bezel. I just sent again for the replacement of the metal bezel. Another 2 days of waiting. Conclusion, if got yellow tint, just visit SC for warranty claim. It is not a feature, it is a factory defect