My iPhone 6s Plus is using version 12.5.7 and there are telling me your phone is up to date

godsonakpabli3 wrote:

MGAK2ZP/A

That's the model number for an iPhone 6 Plus(no s). Released in 2014.

Is iPhone 6s better than iPhone 6 Plus

The iPhone 6s and the 6s Plus were released one year later in 2015, and yes, have better hardware, CPU and RAM than the 6 and 6 Plus.

Similar to how the iPhone 14 is newer and better than the iPhone 13.

That’s because you do NOT have a 6s plus. You have a 6 plus. That model can not be updated any further than ios 12.5.7.

I suggest charging your phone first or plugging it into a charger and then trying the update again.

Hello ~ Take a look here by clicking on…

Identify your iPhone model - Apple Support

~Katana-San~

Kilted Tim above is probably correct. What is the model number in Settings ➜ General ➜ About ➜ Model?

You cannot have iOS 14 on an iPhone 6, you need an iPhone 6s or later for that.

You would need to get a newer iPhone.