Try removing the battery to turn the phone off and turn it on as usual. That will bring you to the Home screen and you can use the phone like you always do. Galaxy S5 shows “mmc_read fail” error ...

To sideload apps on your Fire Stick, go to Settings and turn on both ADB debugging and Apps from Unknown Sources. Then, get ...

Samsung TVs aren't exactly cheap, so it can be frustrating when yours won't download any apps. Here's a quick guide on how to troubleshoot the problem.