The standard Samsung Galaxy Note 4 model got the Android Lollipop treatment two weeks ago. Users across Brazil, Europe, India, UAE and USA got the new firmware recently and others will follow suit very soon.
Today Samsung launched the same update for the dual-SIM version of the flagship phablet - the Galaxy Note 4 Duos. The device is available exclusively in China and Hong Kong and the OTA firmware is available on both regional models.
The OTA update is about 1GB big and requires about 3GB of free space in order to install properly (it won't take most of it, don't worry). It brings your Android OS to version 5.0.1 Lollipop and introduces the latest TouchWiz launcher and optimizations.
If you live in China and own the dual-SIM Note 4, then the update should already await your approval in the Settings menu.
Thank you, Zaroy Din, for the tip!
How about 5.1.1 update for note4 duos?
I am facing exactly same problem like u. Did u manage to find solution ??
Note 4 was already bad after update it is worst phone. Lagy, weak sound control, etc. I sold the half price I turn back to Note 2 which is working like hell.