how can i update my cp 6s i can’t download app.of stay safe

VPN or proxy connections might prevent your device from contacting the update servers.

• Get help with over-the-air iOS updates - Apple Support

• Remove and download the iOS update again

If you still can't install the latest version of iOS, try downloading the update again:

1. Go to Settings > General > [Device name] Storage.

1. Find the iOS update in the list of apps.

1. Tap the iOS update, then tap Delete Update.

1. Go to Settings > General > Software Update and download the latest iOS update.

If you don’t see the update in the list of apps or if the issue happens again, you need to update your device with iTunes.

Try updating iOS after each step.

• Try Forget the WiFi network and add again

• Try another WiFi network 

• Toggle sets automatically off and then on

• Reset your network settings

• Force restart your device

• Remove any beta profiles, if applicable

• If everything fails: - Use iTunes or Finder (for MacOS Catalina+) to update your device instead of over-the-air

• Get help with iOS update and restore errors - Apple Support

• If you see an error when you update or restore your iPhone, iPad

You show to have an iPhone 6 Plus, is that correct? If so you cannot go any higher than iOS 12.5.5, the 6 series does not have sufficient RAM to run iOS 13 or later and you cannot add RAM.

If you can't make purchases or update apps, including free apps, you need to update your payment method or add a new one. If you already verified that a payment method is available in your country or region and you're still having trouble, learn more.

Based on your country of residence and country you have selected under your Apple ID --> Payment methods that you can use with your Apple ID - Apple ...

Have you a Debit/Credit card that is issued to you that is valid internationally and is from the same Country / Region as your Apple ID.

If software update is telling you that 12.5.5 is up to date, you do not have a 6s, you have a 6. That device is obsolete.

If you can't choose None as a payment method only if...

1. If you have an unpaid balance or payment due
2. If you have a subscription that automatically renews
3. If you're using the iTunes Store or App Store for the first time
4. If you are not in the country or region you’re creating an Apple ID for
5. If you changed your country or region
6. If you're a part of Family Sharing

If you still can't install the latest version of iOS or iPadOS, try downloading the update again:

• Go to Settings > General > [Device name] Storage.
• Find the update in the list of apps.
• Tap the update, then tap Delete Update.
• Go to Settings > General > Software Update and download the latest update.

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

If you can't download or update apps on your iPhone or iPad

Open the App Store and sign in. If a blue account button appears at the top of the App Store, you might not be signed in. · Manually update