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Before you begin troubleshooting, verify and ensure that you are using the right SIM card type for your device.
You can double-check by removing the SIM card from your device, if necessary. If you got the right SIM card but still getting the same error, then move on and try the following solutions. If a soft reset failed to fix the problem and the SIM card error persists, try to remove and reinstall the SIM card on your phone.
Aside from the possibility of the SIM card being dislodged or loose, removing the SIM card is also a way of refreshing network function of the phone. To prevent liquid from entering your device, fully insert the tray into the tray slot. Network problems can also be due to invalid network settings on the phone. With the SIM card inserted, follow the steps to restore network settings on your Galaxy A7 smartphone to defaults:. For more information and further assistance on APN settings modification, contact your service provider or carrier.
You can add or remove it at any time. If you are viewing your contacts through the Phone app, tap your name below the "Me" label at the top. Please let us know what we did well or what we can improve about this article. Go to…. If you wish to change your JB Hi-Fi Mobile Plan to a new month-to-month mobile plan, you may be able to do so when your contract ends. On Samsung Galaxy, you can find your phone number in both the Settings app, and the Contacts app. Please enable JavaScript for better browser functionality.
Aside from new features, software updates also embed fix patches, to address or get rid of software bugs affecting certain devices. Restart your phone when the update is completely installed.
Doing so will ensure all new system changes are properly implemented and the device to function properly. You may consider a full system reset or master reset as your last resort if all else failed to fix the SIM card error on your Galaxy A7 handset. It might be inflicted by some tough bugs that require more advanced solutions including a full system wipe out.
Should you wish to proceed, back up all your important files as they will also be deleted in the process. Your phone then starts clearing all data and restores the default settings. After the reset, it will reboot automatically. It may even already be installed. If you signed into your Samsung account during initial setup, like I said, odds are Find My Mobile is already turned on.
* Device and screen images simulated for illustrative purposes. A back view of two Galaxy S20 Ultra devices. Galaxy S20 Ultra. LEARN. If you have lost your device, try the ‘Find My Mobile’ service. You can remotely locate your lost smartphone, back up data stored on the device to Samsung Cloud, lock the screen, and even block access to Samsung Pay. Access the ‘Find My Mobile’ service and find or lock your.
Check on your device by searching for Find My Mobile in the Settings app. If prompted, sign into your Samsung account to enable the feature. I suggest turning on all options associated with the feature as well.
Remote controls will allow you to do things like force a remote backup, retrieve call and message logs, enable battery saving features and so on. Google location service provides more accurate location information -- vital at a time when you're tracking down a lost device. Send last location will monitor the device's battery and send its last known location right before it loses power.
Samsung doesn't have an app you can use on another phone to track a lost device. Instead, you can use any mobile or desktop browser to visit findmymobile. Once there, log into your account and select the device you're looking for. If it's powered on, you will see its current location and battery percentage.
A popup will also provide a series of actions to take on the lost device:. Most of these are self-explanatory.
There are a couple that are worth explaining a bit more. For example, retrieve calls and messages will sync with the phone and show you the last 50 calls and messages, complete with phone numbers.