If, despite having already activated the SIM card, you are still seeing an error message stating that the SIM card is not provisioned for voice, you should restart your phone. It may be necessary to restart the device in order to compel it to attempt to re-establish a connection to the network.
If you receive the error message “SIM Not Provisioned,” it indicates that your SIM card has not been given permission to operate on the network of your carrier. Before a SIM card can be used, it must first be activated. However, if you have activated your SIM card on this phone in the past, the problem may have been caused by something other than the SIM card itself.
After you have inserted your brand new SIM card into the appropriate slot on your phone, you should then close the tray and power on your device. You’ll need to go into the settings of your phone in order to clear your network’s cache. On an Android device, navigate to the Settings menu and select either the Reset or Network Settings option. Tap the Network Reset button, then follow the on-screen instructions.
How to Correct the Error “Not Registered on Network” on an Android Device Slide the switch to turn on and off the airplane mode. Restart Your Android Phone. Remove the SIM card from its slot and then replace it. Make sure the software on your Android phone is up to date. Make a choice of your carrier manually. Make the necessary adjustments to the Preferred Network Type. Perform a factory reset on the network settings. Change the SIM card you are using.
After I have selected the re-provision button, the process of re-provisioning the phone takes approximately 15 minutes to complete.
Turn on and make use of your device. Navigate to the Device Support menu. Choose your device. Click on Hardware & phone details after scrolling down to the Getting started section. Select either Insert or remove SIM card, and then follow the on-screen instructions.
After I have selected the re-provision button, the process of re-provisioning the phone takes approximately 15 minutes to complete.