For the past couple of months, my Samsung Galaxy S4 has randomly been giving me the "Sim Card Not Detected" message, and then prompts me to restart the phone. The problem increasingly got more frequent, and increasingly got more frustrating. I was missing important calls and text messages! Eventually it got to the point yesterday where the phone wouldn't detect the sim card no matter what I tried. I've read online people are having this issue with the Samsung Galaxy S4, Samsung Galaxy S5, Samsung Galaxy Note and others. Well my friends, I have an easy trick that should work for you!

First of all, if you haven't done it already like I did, don't hassle with doing a factory reset and wiping your phone clean. It won't fix the problem. Just get a lil piece of paper ready and you should be able to get your phone back up and running.

Pop the back off of your phone, and place a small piece of folded paper on top of your sim card slot that holds your sim card. Next, place the backing back on your phone being careful to keep the piece of folded paper in place on top of the sim card. Restart your phone and BOOM! Your phone hopefully will now recognize the sim card now and you'll be back in business.

Apparently, after spending about 4 hours researching how to fix this problem, some Samsung Galaxy phones are having an issue with the sim card slot being loose. Placing the piece of folded paper on top of it creates pressure, pushing the sim card down and keeping it tightly in place.

I can't guarantee this will work for you like it did for me, but I tried six or seven other things that didn't work before I tried doing this. Good luck, and let me know if it works for you!

michael.scott