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Is Your Samsung Galaxy Showing a Persistent SIM Card Error After One UI 7? Discover This Surprising Fix!

Frustrated by Annoying SIM Card Notifications After Samsung’s One UI 7 Update? Here’s a Powerful Solution!

A significant number of Samsung Galaxy users have encountered a persistent and disruptive SIM card error notification following the recent One UI 7 update. Despite having a properly installed and functioning SIM card, these notifications repeatedly appear, causing confusion and frustration for many.

Is Your Samsung Galaxy Showing a Persistent SIM Card Error After One UI 7? Discover This Surprising Fix!

What’s Happening?

After updating to One UI 7, users across multiple Galaxy device lines-including S21, S22, S23, S24, and Z Fold3-report a recurring notification claiming the SIM card is missing or not installed correctly. The error typically originates from the Setup Wizard app and may prompt users to unlock their Secure Folder, even though cellular service remains unaffected. The notification can appear several times a day, often returning shortly after being dismissed.

Common User Experiences

Many users confirm that their phones continue to make calls and send texts without issue, indicating the error is a false positive. Some users experience additional problems, such as battery drain and app crashes, after the update. Standard troubleshooting steps-like cleaning the SIM card, reinserting it, or restarting the device-have not resolved the problem for most people.

Troubleshooting Steps That Usually Don’t Work

  • Cleaning SIM card contacts and tray
  • Removing and reinserting the SIM card
  • Restarting the device
  • Resetting network settings
  • Disabling or uninstalling Secure Folder apps

A Potential Workaround

A workaround shared by users and reportedly suggested by Verizon has helped some, though not all, affected individuals:

  1. Open Settings.
  2. Go to Brightness and Wallpaper.
  3. Turn off Auto-Brightness.
  4. Set the Brightness Slider to the lowest position.
  5. Turn Airplane Mode ON, then OFF again.

Several users have confirmed this method stopped the notifications, even if the reason for its effectiveness remains unclear.

Additional Tips

Disabling the Secure Folder feature has eliminated the notification for some users. If the error persists, try inserting your SIM card into another phone to rule out hardware issues. If your SIM card works in another device, the issue is almost certainly software-related and tied to the One UI 7 update.

What Should You Do Next?

Try the workaround above. If unsuccessful, you may have to wait for an official Samsung patch, as the issue appears to be widespread and directly linked to the latest update. Continue to use your phone as normal; the error notification does not affect cellular service.

Contact Samsung support if the issue severely impacts your device’s usability, especially if you experience additional problems like app crashes or battery drain.

Stay positive: While this bug is frustrating, your device and SIM card are likely functioning correctly, and a permanent solution is expected soon. In the meantime, try the suggested workaround and keep your device updated for future patches.