If you’ve acquired a new work SIM or an Android phone for quicker internet access, the “SIM Not Provisioned” error can hinder your connectivity and disrupt your daily routine, preventing you from making or receiving calls and using cellular data. It’s perfectly normal to feel bewildered and uncertain about the next steps. The SIM Not Provisioned error generally indicates that your phone cannot connect with your wireless carrier using the details provided by your SIM card. This issue can affect both eSIMs and traditional SIM cards.
Users of Android phones may sometimes encounter a more technical version of the same issue: MMCC_IMSI_UNKNOWN_IN_HLR. This is equivalent to experiencing a SIM Not Provisioned error and signifies that your phone line’s IMSI (International Mobile Subscriber Identity)—a distinct identifier for any mobile connection—is not recognized by your wireless carrier’s HLR (Home Location Register). The HLR maintains a log of all the carrier’s subscribers. So, what could be the likely reasons behind this error, and what actions can you take? Let’s explore.
