I need to install ios13 to download some important app , i need help please

Nobody can help you, sorry, since an iPhone 6 cannot support iOS versions beyond 12.5.1, because of hardware incompatibility.

Regards

Giulio

You may wish to do some detailed research prior to purchasing a new smart device. It is common knowledge that all Apple iPhones have updates available at least twice as long as Android devices. Choose wisely.

Perhaps it's useless for your needs (if you mean that some apps developers did not keep their apps compatible with iOS 12.5.1.), but since that model was released in 2014... and it's still working... I would think about it better before making decisions.

Good luck

Giulio

Tarekfouad87 wrote:

FYI releasing date was at end of 2015 , though , not every year i have change to new model of iphone , customer is buying a powerful brand that last for long time not for few months then booom disappeared , its here my objection.

I beg to differ and, just for the record, the information in your possession is incorrect.

iPhone 6 and 6 Plus models were announced on 9 September 2014 and their sale began before the end of September of the same year worldwide.

Regards

Giulio

Other makers don't even last half as long as Apple.

Good luck with your droid.

Tarekfouad87 wrote:

So I-phones are useless after a period of time , well i guess shifting to another brand will be good , iphone is now crappy phone

Good luck with that...

Object all you want.

Your device doesn't have enough RAM to run iOS 14.3.