how can update new version
how can I update new version
iPhone 6s Plus
how can I update new version
iPhone 6s Plus
Marking your own post as Solved may prevent others from trying to help because they think you have fixed your problem.
According to the screen shot, you need to free disk space. See if anything here helps.
Disk space - How to check the storage on your iPhone, iPad, and iPod touch.
How can new update
how can update new version