carrier unlock phone

How to SIM Unlock Android Phone on Every Carrier?

An unlocked Android phone (or tablet) means that you can put a SIM card inside from any mobile network carrier and it will work. However, when it’s locked, your phone will only work on one network. It is now highly possible to switch to another cellphone network carrier when your two-year contract finally up. Otherwise, when you’re travelling overseas, you can save big on calls aboard by simply replacing with a local SIM card. All of the above circumstances, you need to SIM unlock your phone for switching between any network carrier.

Network/SIM unlocking your Android phone might be time consuming because each cellular network has a different locking principle. However, this tutorial gives you a simple and quick solution on how to sim unlock your Android phone. It worked with over 400 Samsung devices (even more in the future). After the simple unlocking process, you’ll get permanent unlocked phone. For Samsung Galaxy S3 ~ S7, you need to root your phone first. But for some models, it does not require root access.

Android SIM unlock software

Android SIM Unlock is a part function of iSkysoft – Android suite tool. Once you connect your phone, it can analysis the locking principle on the SIM card, and then complete the process to SIM unlock Android phone automatically. No data will loss at all during the unlocking. Then what you should do is download this desktop software on your PC, launch it, and start the following steps. It takes less than 10 minutes to carrier unlock your phone.

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Step 1. Open Android SIM Unlock software

Firstly, download and launch the software on your computer. Then, click More Tools tab on the left, select Android SIM Unlock option to start with the operation.

SIM unlock Android phone

Step 2. Connect your Android device

Now, it’s time to connect your Android phone/tablet to the computer via the digital cable. The program will instantly detect your device and show its matching model on the primary window.

Android phone match model

Step 3. Enter Service Mode for Samsung Galaxy S2~S4, Note 1~Note 3

Once you pressing the Next button for moving on, the program will show you the guidelines for you to enter service mode. Follow and take the steps:

  1. Dial *#0808# or ##3424# or #9090# on your Android phone (choose one to try).
  2. After you input one of the numbers and symbols, the phone interface should be one of the three pictures below. Follow the right picture to set your phone and confirm.
  3. Select DM + MODEM + ADB or UART[*] or CDMA MODEM on the phone.
  4. After the phone is set properly, click on Unlock.

switch to service mode

Step 4. Click to network/SIM unlock Android phone

After you click on Unlock, Android SIM Unlocker will start unlocking your mobile phone instantly. When the process completes, the program will prompt your that your phone unlocked successfully.

carrier unlock phone

*Note: Once you get your phone unlocked successfully, you should set it back into normal mode. Click on Restore Mode button to continue.

To restore the phone to normal mode, dial *#0808# or ##3424# or #9090# on your Android phone and select MTP + ADB or USB[*] or PDA on the hidden menu.

restore normal mode

Then click on Next, your phone will enter normal mode and now it’s sim unlocked permanently.

Unlocking Samsung Galaxy S3 ~ S7

For Galaxy S3 ~ S7, the unlocking operation is simpler. But to successfully unlock these devices, please make sure you have rooted your devices first.

Once your phone is connected and detected, you just need to click Unlock button. Android SIM Unlock will automatically sim unlock your phone. All you need to do is waiting for about a few minutes till the process completes.

Galaxy S3 S4 S5 S6 S7 SIM unlock