If you are using the phone on a cheaper mobile phone, or if you are on vacation and want to save a lot of money using a local SIM card, unlock your Samsung smartphone or unlock an Android smartphone. In addition, the video must show an alternate SIM card in the device and insert the message that appears on the screen and you enter the unlock code and the message appears after entering the code. After reading this article, you will know exactly how to unlock the Samsung S7, which saves money and more importantly, you have greater freedom to choose which service provider to use. When I finally got the Android Studio setup to work and downloaded it and got it done, I did that as stated above and wrote all word words (and letter to letter) on the question. These programs do not work for Android versions 4. Does Unlocked Phone Work Any Carrier more. 1 and later. Android 4.1, which you more familiar with than Android Jellybean, came out in 2012, so it probably not the right choice for you unless it a used device. Even worse is taken just like Jail-Breaking on iOS devices, the entire industry behind phones or jail was breaking organized criminals who want to install malicious software on the phone. If I enter KeyEvent shell entry 66, I get the answer that the shell is not recognized as an internal or external command, executable program or batch file. I used an app to save my passwords that I have not backed up, you think I could like to emulate my phone on my PC and save it and transfer it to my new phone? And it does, while all your data is completely safe. Dr.fone - Check Android SIM Unlock supports a number of devices (over 400), including but not limited to Samsung Galaxy Note, Samsung Galaxy S, Samsung Galaxy Tab, Samsung Galaxy A and other models like Ace3 and Mega. Please confirm the confirmation dialog for device, but my Galazy S4 screen is blank and can not do anything, and to me it very important to get my personal data before going to hardware service.