Why my phone don't update software

Your iPhone 6 Plus can not be updated beyond iOS 12.5.7.

To update the software on your iPhone 6 Plus running iOS 12, follow these steps:

1. Check Compatibility:

   Before updating, make sure your iPhone 6 Plus supports the latest iOS version available.

2. Backup Your Data:

   It's essential to back up your iPhone data using iCloud or iTunes to prevent data loss during the update process.

3. Connect to Wi-Fi:

   Ensure your iPhone is connected to a stable Wi-Fi network to download the software update.

4. Update Over the Air (OTA):

   - Go to Settings > General > Software Update on your iPhone.

   - If an update is available, tap "Download and Install."

   - Follow the on-screen instructions to install the update.

5. Update using iTunes:

   If you're unable to update over the air, you can connect your iPhone to a computer with iTunes and update from there.

6. Factory Reset:

   If you continue to face issues, you may consider backing up your data and performing a factory reset before attempting the update again.

For detailed steps or if you encounter any specific issues during the update process, I recommend reaching out to Apple Support or visiting an Apple Store for personalized assistance.

None of your AI generated junk has anything to do with the correct answer for the question.

You have an iPhone 6 Plus.

You need to have an iPhone 7 to update to iOS 15.

You need to have an iPhone 8 to update to iOS 16.

You need to have an iPhone XR, XS or higher model to update to iOS 17.