My device is not detecting the SIM card after upgrade to Windows 10 Technical Preview phone build 10.0.12534.56

I installed the newest build of Windows Technical Preview onto my device.  After the installation completed, my device no longer recognizes my SIM card and I see “No SIM”.

 

How do I fix this?
 

Question Info

Last updated January 19, 2019 Views 10,347 Applies to:
Answer

Hi Babu,

This is a known issue that occurs for a small portion of users who upgrade to the current Windows 10 Technical Preview build (10.0.12534.56).

 
To resolve the issue, unfortunately you’ll have to complete a reset on your device.  Before doing so, please ensure you have backed up any important content such as your photos, videos, contacts, etc.
 
The device reset can be started here:

Settings> System> About> (Reset your device)


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