Hello friend how to update my iPhone

chinedu264 wrote:

I want to update it to the new iPhone version

Assuming you have a compatible device, see: Update your iPhone, iPad, or iPod touch - Apple Support

And: If your iPhone, iPad, or iPod touch won't update - Apple Support If the above Apple articles do not help, please post back with relevant information. 

Hello there to update your iPhone go to settings, then click on general and press software update if your phone is too old then you won't be able to update it.