Samsung uses a Region Lock to prevent phones from being traded outside the intended region. You can recognise a Samsung smartphone with a Region Lock by the sticker on the box with "EUROPEAN SIM CARD ONLY".
This can cause problems if you want to use a non-European SIM card. Fortunately, it is very easy to solve the region lock. All you have to do is make calls for a total of five minutes with a European SIM card. After that, you can use any SIM card you want in any place you want. So it is important that you do this before you go abroad where you are going to use a foreign SIM card.
The Europe region includes all countries within the EU, plus the following countries: Lichtenstein, Iceland, Norway, Switzerland, Albania, Andorra, Bosnia and Herzegovina, Macedonia (F.Y.R.O.M.), Monaco, Montenegro, San Marino, Serbia, and Vatican City. So in these countries, you don't have to worry about the region lock.
If you get the notification 'camera error' this is often easy to fix. You can first try to remove the data from the camera application and do a software update. To do this follow these steps:
If these steps do not work, there is another way to fix the error. Resetting your device to factory settings almost always solves the problem. Please note: you may lose your applications and data. So first make a backup. A reset can be done as follows:
Your phone's storage space can get full by storing lots of apps, photos, videos, music, or contacts. This is very annoying, because it makes your phone slow and you won't be able to download new photos or apps. Unfortunately, your phone's memory cannot be expanded with a memory card. But there is another solution: use cloud storage. You can upload photos and videos to the Cloud and then delete them from your phone. The files remain accessible on your phone via the Cloud, but no longer take up space on your device. This way, your phone stays fast and you have room for new apps. Examples of Cloud storage include iCloud, Dropbox, Google Drive, and Microsoft OneDrive.
If you are returning or sending an Android device for repair, it is necessary to remove your Google Account from your device. To delete your Google Account, follow the steps below:
Some phones have the front camera and proximity sensor in the display. The proximity sensor flashes as soon as you bring your phone closer to your ear. It then looks as if you have a dead pixel in the display.
That flashing white pixel is not a dead pixel but the proximity sensor that does its job of turning the screen off while calling to prevent unintended touching.