Hi there! I see that when you plug your Y-Disk into your iPhone and open the app, it closes immediately. Let's work through this together so you can get it working.

First, can I ask:
- What iPhone model and iOS version are you using?
- Have you tried restarting your iPhone since this started happening?
- Is your Y-Disk app updated to the latest version from the App Store?

To start with, here’s a straightforward set of steps that often resolve this kind of app crash:

1. Restart your iPhone: A fresh reboot can clear up temporary glitches.
2. Check Y-Disk app updates: Open the App Store and make sure the Y-Disk app is up to date.
3. Unplug and replug the Y-Disk: Sometimes disconnecting and reconnecting can refresh the connection.
4. Try using an official Apple Lightning adapter, if you’re using a third-party one, as some non-certified adapters can cause apps to crash.
5. Test the Y-Disk on another device, like another iPhone or iPad, if possible, to rule out hardware problems.
6. Reinstall the Y-Disk app: Delete the app and reinstall it from the App Store. This ensures you have a clean install without any corrupted files.
7. Update iOS: Make sure your iPhone is running the latest iOS version, as some older versions might have compatibility issues with the app.

If after these steps the app still closes on you when Y-Disk is plugged in, it might be related to device or iOS compatibility issues that some users have reported, especially with certain iOS updates. In that case, sharing your iOS version can help me guide you further.

Let me know what steps you’ve tried or if there’s any variation in behavior. I’m here to help get this sorted out with you!

Are you satisfied with this initial troubleshooting plan?

it worked before i updated to ios26

Thanks for letting me know the app worked before updating to iOS 26. This helps clarify the situation quite a bit.

Actually, this seems to be a known issue many Y-Disk users have reported since updating to iOS 26 and 26.0.1. The app tends to open briefly and then crashes when the Y-Disk is connected. There are a few things you can try based on recent user experiences:

1. Restart your iPhone: Even if you already did this, it’s worth trying again after the update to fully reset app and system processes.

2. Check for a Y-Disk app update: The developers may have released a fix compatible with iOS 26. Please open the App Store and see if there is an update available for Y-Disk.

3. Reinstall the Y-Disk app: Delete and reinstall to ensure you have the latest version cleanly installed.

4. Reset all settings on your iPhone: This will refresh system permissions and configurations without deleting your data and can sometimes fix compatibility issues:
- Go to Settings > General > Reset > Reset All Settings.

5. Check file system of your Y-Disk: Some users report that flash drives formatted with ExFAT or APFS work more reliably on newer iOS versions.

If none of these help, it might be that Y-Disk’s developers need to release an update optimized for iOS 26, or Apple may address this in an iOS patch soon.

Here are a few relevant community discussions and resources you might want to check:

- Apple Communities thread on Y-Disk crashing after iOS 26 update: 1
- JustUseApp forum with practical advice on Y-Disk after iOS 26 upgrade: 2

If you'd like, I can help walk you through resetting settings or checking the file system format. How does that sound? Are you comfortable with those steps, or would you prefer we try another approach?