Solved Samsung Galaxy S8+ Unknown Caller When Receiving Calls

The #Samsung #Galaxy #S8+ is a flagship phone released last year that is basically the bigger version of the S8 phone. This model uses a much larger 6.2 inch Super AMOLED display and a bigger 3500 mAh battery. Its other hardware components are similar to that of the S8. Although this is a solid performing phone there are instances when certain issues can occur which we will be addressing today. In this latest installment of our troubleshooting series we will tackle the Galaxy S8+ unknown caller when receiving calls issue and other related problems.

If you own a Samsung Galaxy S8+ or any other Android device for that matter then feel free to contact us using this form. We will be more than happy to assist you with any concern that you may have with your device. This is a free service we are offering with no strings attached. We however ask that when you do contact us try to be as detailed as possible so that an accurate assessment can be made and the correct solution can be given.  

If you would like to browse the previous parts in this series then check out this link.  

S8+ Unknown Caller When Receiving Calls

Problem: Hello I have recently updated my phone software I use S8+  I updated from Android 7.0 to 8.0 and I have couple issues after updating 1-i whenever my friend calls me it shows as unknown caller if I miss any call I could not know who called me 2- from past couple of days it’s showing a error message has stopped working I tried all the tips on the internet but nothing fixed my issue so please help me

Solution: If this issue occurred right after the update then it’s very likely caused by a software glitch. The first thing you will want to do right now is to make a backup copy of your contact list as this might be deleted during the troubleshooting process. Once you have made a backup copy you will then need to clear the cache and data of the contacts app and the phone app from the application manager. Once this is done you should restart the phone then check if the issue still occurs.

In case the problem persists then proceed with backing up your phone data then start the phone in recovery mode. Perform the steps listed below.

  • Wipe the cache partition of the phone.
  • Do a factory reset.

S8+ No Mobile Network

Problem: I have no mobile network.  I am not able to make phone calls or text.  I can connect to internet via wifi. I can get to all of my information that is stored on my sim card, as well.  My mobile data is turned on. This “No Mobile Network” happened suddenly yesterday and has not returned, no matter where I go (different towns).  I’ve shut down my phone multiple times, taken out the sim card. Nothing has helped. I have a Samsung Galaxy S8+ and my carrier is AT&T.

Solution: The first thing that you will need to do in this particular case is to try to insert a different SIM card in your phone then check if you still get the same error message. If the issue does not occur then the problem could either be caused by a faulty SIM card ( in which case you will need to have it replaced) or your service has been disconnected ( in which case you will need to contact your carrier).

If the problem still occurs even with a different SIM card inserted in the phone then the best thing to do right now is to backup your phone data then do a factory reset. This way you can check if the problem is caused by a software glitch.

In case the issue persists even after the reset then this might already be caused by a faulty hardware component. The best thing that you can do right now is to bring the phone to a service center and have it checked.

S8+ No Signal

Problem: My place of business is in a large high rise concrete building. When I enter a dead spot with no phone signal the circle with a line signaling “no signal” comes on and when I enter an area with a signal it does not automatically come back on. I have to go to airplane mode then back to normal to make the circle go away and the bars to come back. It is very annoying. Can you solve this ? I understand it is related to the battery saving software changes Samsung made for the 8+. If no signal is found while pinging it shuts off and does not auto start . I do not like it.

Solution: Your phone should be able to easily detect a mobile signal once it is present. If you need to restart the phone in able to get a signal then it’s very likely that this is caused by a software glitch. The best thing you can do right now to fix the problem is to backup your phone data then do a factory reset.

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