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How To Unlock Samsung Galaxy S8+ SM-G955T T-Mobile USA - SIM Unlock

Tuesday, 19 June 2018 17:34 TSAR3000

Galaxy S8 Plus T-Mobile SIM Unlock

Samsung Galaxy S8+ SM-G955T T-Mobile IMEI Status Check:


1- Make sure your Galaxy S8+ SM-G955T T-Mobile is 100% Clean. That means you have to check if the device is reported as Lost, Stolen or any other problems. You can use the official T-Mobile IMEI check service (T-Mobile IMEI Status Check Link).

T-Mobile USA IMEI Check Service

2- To get the IMEI number of your Galaxy S8+ enter this code *#06# using the phone's keypad.

Galaxy S8 Plus T-Mobile IMEI Number

3- Now enter the IMEI number (15 digits) and click on Submit.

T-Mobile USA IMEI Status Check

4- When the Security Verification window appears, Enter the letters and numbers you see into the text box, Then click on Validate.

T-Mobile USA Security Verification

5- If your Galaxy S8+ is Clean you will get the below result, And you can Unlock it:

T-Mobile USA Clean IMEI Number

6- Otherwise you will see the below result, And you can not Unlock it:

T-Mobile USA IMEI Number Blacklisted

 

Samsung Galaxy S8+ SM-G955T T-Mobile Software Check:


1- Make sure the phone is not rooted.

2- Make sure the IMEI number is not modified or changed.

3- Make sure your phone is running the original T-Mobile stock ROM. No custom Firmware like CyanogenMod, or Unbranded ROM is installed.

4- Check if your phone has the latest software version.

5- With your phone connected to the internet, From phone's Home screen Tap on Apps icon > T-Mobile folder > Device Unlock application.

6- Tap Continue.

7- Tap on Permanent Unlock.

8- If your phone shows: "Unlock Failed: This mobile wireless device is not eligible for unlock. For Device Unlock eligibility details, please go online or contact Customer Care." then you can order the SIM Unlock service.


Buying The Samsung Galaxy S8+ SM-G955T T-Mobile SIM Unlock Service:


1- Use only a trusted SIM Unlock service. We recommended this Galaxy S8+ SM-G955T T-Mobile SIM Unlock service.

2- After placing your order for the SIM Unlock service, You have to wait until you get an email from the service provider informing you that your Galaxy S8+ T-Mobile is Unlocked.



Unlocking Samsung Galaxy S8+ SM-G955T T-Mobile:


1- Put the original T-Mobile USA SIM card inside your phone.

2- Make sure your phone is connected to the Internet. If your 3G/4G/LTE data connection is not good and stable, Then use a good WiFi connection instead.

3- From phone's Home screen Tap on Apps icon > T-Mobile folder > Device Unlock application.

T-Mobile Device Unlock Application

4- Tap Continue.

T-Mobile USA Device Unlock App

5- The Application will connect to T-Mobile server.

T-Mobile Device Unlock Step 2

6- The Device Unlock App will give you two options. Tap on Permanent Unlock option.

T-Mobile Device Unlock Step 3

7- The App will reconnect to the server to Unlock your Galaxy S8+.

T-Mobile Device Unlock Step 4

8- When the Unlock process is done, You will see a message informing you that your device is Permanently Unlocked. Tap on Restart Now.

T-Mobile Device Unlock Step 5

9- Your Galaxy S8+ SM-G955T T-Mobile will restart. Congratulations, Your phone is SIM Unlocked and you can you any other SIM card from any other Mobile operator worldwide.



Galaxy S8 T-Mobile Device Unlock App Error Messages and Solutions:


Error Message: Device not recognized by your service provider. Please call customer care.
- Solution 1: Make sure your phone is not rooted. If it is rooted then install an Original T-Mobile Stock ROM.
- Solution 2: Check if your phone has the latest T-Mobile software version.

Error Message: Data corrupted during transfer. Please try again. Error during data transfer. Please try again.
- Solution: Use a good and stable Internet connection. Try to restart the phone and try again.

Error Message: Server not responding. Please try again later.
- Solution: Use a good and stable Internet connection. You can try again after a while or at a different time of the day.

Error Message: Failure in processing the request. Please reboot device and try again.
- Solution: Check if your phone has enough memory, Then restart it and try again.

Error Message: Unlock Failed: Unlock Approved: Mobile Device is permanently unlocked
- Solution 1: Check if your phone has the latest T-Mobile software version.
- Solution 2: Factory Reset your phone and try again.

Error Message: No internet connection available. Please try again when internet connection is available.
- Solution: Make sure your phone is connected to the Internet.

Error Message: Unlock Failed: System maintenance error, try again later.
- Solution: Try at another time of the day.

Error Message: Failure in applying the unlock settings. Please try again.
- Solution: Original T-Mobile SIM card must be used. Check your Internet connection.


Last Updated on Tuesday, 26 June 2018 16:45



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