After installing build 14926, many Insiders were surprised to see a strange message on their phones’ displays: “No SIM”. To make things worse, users can’t enter the PIN code and their terminals randomly restart.
Insiders plagued by SIM and PIN issues in latest Windows 10 Mobile build
Microsoft has officially acknowledged this issue and is working to find a fix as soon as possible. If you have encountered SIM and PIN issues after installing Windows 10 Mobile build 14926, you can help Microsoft further investigate this issue by posting the following information on the Feedback Hub or on the dedicated forum thread: This wasn’t seen internally or we would not have released this build. We know Fast ring Insiders are willing to handle some painful scenarios, but this isn’t one we would intentionally put you all through!
Device make and model Country Mobile Operator name
According to user reports, this issue can be fixed by performing a hard reset. If you decide to try out this workaround, you should opt to use a back-up build in order to restore the content previously saved on your device. RELATED STORIES YOU NEED TO CHECK OUT:
Fix: Lumia won’t download Windows 10 Mobile Anniversary Update Fix: Can’t Send SMS From Windows 10 Mobile Fix: Phone not Detecting SIM Card After Windows 10 Mobile Upgrade
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