SIM 1 Not Allowed Error: What It Means & How To Fix It
A common issue when setting up a smartphone for the first time, such as the new Galaxy S22 and S22 Ultra, is a 'SIM Not Allowed' error. Though SIM card errors with older phones might be an unavoidable problem moving forward, modern issues with these errors should be easy to fix with some light troubleshooting. Major phone companies are ending their 3G network support, leaving older devices without cellular data. While that might affect older Android phones and devices like Kindles, modern Samsung phones likely face SIM card errors due to settings issues.
The hassle that comes along with SIM cards might not plague users for too much longer, though. eSIM technology, which allows users to connect to cellular services without a physical SIM card installed, is commonplace in modern smartphones. Furthermore, eSIM might even be replaced with newer technologies in the future, as companies are now testing iSIM technology. This is a smaller version of an eSIM chip which is integrated directly into the smartphone's motherboard or system-on-a-chip (SoC). However, these new iterations of SIM card technology might also be the cause of the 'SIM 1 Not Allowed' error on the latest Samsung smartphones.
Related: Samsung Galaxy S21 FE Users Are Reporting Display Refresh Rate Issues
Users experiencing a 'SIM 1 Not Allowed' error should first ensure that their SIM card is installed properly. The location of the SIM card slot will vary depending on the model of smartphone, but the tray can be identified by the small hole used to eject the tray. Using a SIM-eject tool or an unraveled paperclip, users can easily eject the SIM tray and verify the SIM card is installed correctly. The issue can also be caused by an incompatible SIM card, as there
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