Hi there! I understand your Tuta app on your iPhone 12 is showing just a white screen after the update, while it was working fine before. Let's see if we can get this sorted for you.

To start, could you tell me if you've already tried closing the app completely and reopening it? Sometimes, that simple refresh can clear up issues after an update.

If you haven't, here’s a step-by-step approach to try:

1. Force Close the Tuta App:
- Swipe up from the bottom of the screen and pause in the middle to bring up the app switcher.
- Find the Tuta app preview and swipe it up to close it.
- Then reopen it to see if it loads properly.

2. Restart Your iPhone:
- Press and hold the side button and either volume button until the slider appears.
- Slide to power off, wait 30 seconds, then press and hold the side button again to turn your phone back on.
- Check the app again after restart.

3. Check for a Newer Update for Tuta:
- Sometimes the first update might have a bug, and developers quickly release a patch.
- Go to the App Store, tap your profile icon on the top right, and scroll to see if Tuta has an update. If yes, update it.

4. Reset All Settings (won't delete your data but resets preferences):
- Go to Settings > General > Transfer or Reset iPhone > Reset > Reset All Settings.
- This can fix any setting conflicts possibly caused after the update.
- After that, try launching the Tuta app again.

5. Reinstall the Tuta App:
- Press and hold the Tuta app icon until options appear.
- Tap "Remove App" then "Delete App."
- Reboot your iPhone.
- Go to the App Store and install the Tuta app again.

If none of the above helps, it might be related to a compatibility issue between the current iOS version 16.3.1 and the app update. Sometimes the developers need a bit of time to issue a fully compatible fix.

Please try these steps and let me know how it goes, and if the white screen persists, we can dig deeper or consider contacting Tuta’s support directly.

Are you able to try these out now?

Still not working

Thanks for trying those steps and letting me know. Since the white screen issue persists after restarting, reinstalling, and resetting settings, let's consider a couple more possibilities.

First, sometimes connection issues cause the app to fail loading properly. Could you please try restarting your Wi-Fi router or switch to another internet connection (like cellular data) to see if the app then loads? A network-related problem could cause the app to just stay blank1.

Also, is your Tuta app the official app from the App Store? Sometimes unofficial versions or expired certificates can cause failures.

If the network isn’t the issue, it could be a bug introduced in the latest app update, affecting iOS 16.3.1 or the iPhone 12 specifically. In that case, the developers usually fix it quickly in a patch release.

You can check the official Tuta support resources here, where they sometimes post known issues and solutions: https://tuta.com/support

If it keeps happening, you might want to report the bug directly through their support contact ([email protected]) with details like your iOS version, device model, and app version.

To sum up, please try:

1. Switch your internet connection or restart your router, then open the app again.

2. Double-check you have the official app version.

3. Look for any new app updates in the App Store.

4. If still stuck, reach out to Tuta’s official support with your issue for a direct fix.

Let me know if you want help with any of those steps! Are you able to test your connection right now?