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Learn how to mark your AirTag as lost and add your phone number and email so the person who finds it can contact you to return the item.

Just like iPhone, you can activate your missing AirTag or supported third-party Find My network trackers in Lost mode.

Lost Mode lets you display a message and your phone number or email address to inform the finder that the item is lost.

When a person finds your lost AirTag or third-party tracker, they can use their iPhone or NFC-capable Android phone to visit Apple’s webpage that shows your Lost Mode message and phone number.

Activate Lost Mode for AirTag or other items

1) Open the Find My app on your iPhone, iPad, or Mac.

2) Go to the Items tab and select your missing AirTag or third-party item tracker.

3) Tap Show Contact Info in the Lost AirTag section.

4) Read more about this and tap Continue.

5) Enter your phone number so the finder can contact you and tap Continue. If you don’t want to disclose your mobile number, tap Use an Email Address and type that instead.

6) Make sure the “Notify When Found” switch is enabled so you get a notification alert when your missing AirTag comes in contact with other iPhones, iPads, or Macs and relays its location to you. Review the phone number and the Lost Mode message (which, unlike on iPhone, you can’t customize for AirTags), then tap Show Information.

Lost Mode is successfully activated on this AirTag or a third-party Find My network tracker. Now, all you can hope for is that a kind person finds your item attached to an AirTag and knows how to see your contact information so they can return it to you.

How the finder can see your contact information to return the item

When a person finds your AirTag or other tracker, they will have to hold the white part of the AirTag near the top portion of their iPhone or NFC-capable Android phone to visit found.apple.com and see the Lost Mode message and your phone number or email address.

Here’s how it looks on Android:

Tip: Remember to turn on NFC on Android phone from the quick settings panel.

They can also use Apple’s Tracker Detect Android app to learn more about the AirTag. But it’s a poorly rated app that doesn’t work very reliably.

Change your phone number or turn off Lost Mode

1. Open the Find My app and select your AirTag in the Items section.
2. Tap Show Contact Info in the Lost AirTag section.
3. Edit the phone number or email address and tap the checkmark icon. Or, to turn off Lost Mode, tap Remove Contact Info or Stop Showing Information.

Also, check out: What to do if you lost your AirTag

Source link: https://www.idownloadblog.com/2026/04/29/airtag-lost-mode/

Learn how to open and read EPUB book files on your iOS device and go through some solutions if an EPUB file fails to open.

EPUB (short for electronic publication) is one of the most popular e-book formats that’s supported by nearly all e-book reader devices and apps, including Apple’s Books app.

How to view an EPUB file on iOS

1. Download the EPUB file from Safari and tap it in the Downloads section. It should open directly to the Books app.
2. If the EPUB file is saved in iCloud Drive or the On My iPhone/iPad section of the iOS Files app, tap it, then tap Copy to Books.

Note: Book titles you add to your library and download in the Apple Books app on your device are also in EPUB format. If there is a small cloud icon under the book thumbnail, that means the title is added to your library but not downloaded for offline reading. Simply tap the three-dot menu icon, then select Download to read it offline.

If you can’t open EPUB book files on iOS

As mentioned, the Apple Books app supports EPUB natively, without needing any conversion. And the process to open one is super simple, as clear from the above steps. So, if you can’t open an EPUB file, chances are there’s an issue with the file itself or a temporary system glitch. Here’s how to fix this.

Check the EPUB file

Usually, book files are just a few megabytes, but if the title in question has many graphics, it may take a while to download. Check your browser Downloads section to ensure the full file was saved. Sometimes, if a file is only downloaded partially and then fails, you won’t be able to open it.

To check, try opening the same file on another device or app (mentioned below). If it doesn’t work, that means the problem lies with that particular EPUB file itself.

Ensure the .epub extension is added

If the EPUB book is saved to the Apple Files app or another file manager app, look at its file name and make sure you see an ‘.epub‘ extension at the end. If there is no extension, touch and hold the file, select Rename, and manually add .epub at the end.

Restart and update your iPhone or iPad

The EPUB file may not open, or nothing may happen when tapping it because of system glitches. Simply ask Siri to restart the device or manually turn your iPhone or iPad off and back on.

In case your device isn’t running the latest version of iOS or iPadOS, head to Settings > General > Software Update to download and install the latest version.

Try using another book-reading app

Even though the native Books app is a decent book-reading app, with themes, PDF support, and other handy features, you’re not locked to it. If an EPUB file isn’t opening in the Books app, download one of these apps or search for “epub” on the App Store to get something else.

• Epub Reader
• PocketBook
• Neat Reader
• ReadEra
• eBoox

Now, follow these steps to open the EPUB file in the said third-party app:

1. Open the Files app and go to the folder where your EPUB file is saved.
2. Touch and hold the file and select Open With > app name.

In case an app like eBoox doesn’t show in the ‘Open With’ section, follow these steps instead:

1. Go to the Files app or another app where your EPUB file is saved.
2. Touch and hold the EPUB file and select the share option.
3. Swipe through the app icons in the iOS Share Sheet to find the book-reading app, then tap its name. In case you have the app installed, but it doesn’t show in the Share Sheet, tap More at the end and then tap the app name.

Delete and reinstall the Books app

If the EPUB file opens in one of the above third-party reader apps but not the Apple Books app, we can safely assume the problem is with the Books app on your device.

To fix this, delete the Books app, restart your iPhone or iPad, and then reinstall it from the App Store. But before you do this, note that deleting the Books app will remove all local PDFs and book titles; however, titles saved to iCloud will remain unaffected, and you’ll regain their access after reinstalling the app.

Look for the same book on the Apple Book Store

If you still can’t read downloaded EPUB files offline, search for the same book title in the Apple Books Store. Chances are, you’ll be able to download it for free (or sometimes after a small payment).

Read next: 90+ best free books in the Apple Books app

Source link: https://www.idownloadblog.com/2026/04/27/fix-epub-file-issues-ios/