Help me on my iPhone iOS update

• If you have an iPhone 5S or 6/6plus, the highest you can update to is 12.5.5

• If you have an iPhone 6S through 13, you can update to 15.3.1

Go to Settings > General > Software Update.

Update your iPhone, iPad, or iPod touch using WiFi -

https://support.apple.com/en-us/HT204204

Update using your computer -

https://support.apple.com/guide/iphone/update-ios-iph3e504502/ios

If you are having problems updating, please post back with the exact problem you are having.

Hello ~ What model iPhone and version of iOS? Take a look here in the meantime:

Update your iPhone, iPad, or iPod touch - Apple Support

If your iPhone, iPad or iPod touch won't update - Apple Support

~Katana-San~