The Samsung Galaxy S6 Edge (SM-G925T) cell phone from T-Mobile USA is using a custom firmware preventing the phone from being unlocked by code as there is no way to enter it (the phone does not prompt for “SIM Network Unlock PIN”). Prior to this exploit, the only way to Unlock the phone was by using the official T-Mobile “Mobile Device Unlock App” which is an Android app called “Device Unlock” that allows you to request and apply a mobile device unlock directly from the device.
Original “Locked Screen” of a Samsung Galaxy S6 from T-Mobile USA
So what do you do if you get an Unlock Code but you cannot use it?
Now there is a solution consisting of an upgrade to Telus Firmware instead of T-Mobile, and this will allow the phone to ask for the Unlock Code. Once you flash your Phone with this New Firmware, please make sure that your Samsung SM-G925T is asking for “SIM Network Unlock PIN” prior to ordering Unlock Code.
Tutorial Firmware Upgrade
Samsung Galaxy S6 Edge (SM-G925T) to Telus Firmware
Disclaimer: Freedom Mobile is not responsible if users break / brick or damage their phone while trying to use this method. You must not use this firmware for any other Android Cell Phone other than the Samsung Galaxy S6 Edge (SM-G925T) from T-Mobile USA. Do so at your own risk. If you’re not sure what you are doing, please seek assistance at a local cell phone service center in your area.
Step 1 (Preparation):
- Galaxy S6 Edge: Download the Special MetroPCS Firmware for Samsung SM-G920T.
- Download ODIN v3.10.0 Service Software using this link (NEW: Odin v3.10.5 or Odin v3.10.6)
- Make sure your phone battery is charged more than 60%.
- Enable USB Debugging, by open Settings > Developers Option > USB Debugging
If Developers Option is hidden, go to Settings > About Phone > Built Number (tap on it for 5-8 times)
- Make sure you install the Samsung Galaxy S6 Edge USB drivers on your PC, if you haven’t already.
Step 2 (Update Firmware):
- Run Odin3 v3.10.0 as administrator (Right-Click: Run as Administrator).
- Switch OFF your Samsung Galaxy S6 Edge
- Boot in download mode, by pressing the Volume Down + Home + Power Key simultaneously.
- When you see the screen below:
Samsung Galaxy S6 Edge in Download Mode
Tap Volume Up button to enter Download Mode.
- Connect the Samsung Galaxy S6 Edge to your PC with the USB cable.
Odin will automatically detect your phone and show the “Added!” message.
- In the Odin, click on AP or PDA and then choose :- For Galaxy S6 (SM-G920T) :G920T1UVU1AOCH_G920T1TMB1AOCH_TMB_HOME.tar.md5 file.
– For Galaxy S6 Edge (SM-G925T): Presently Not Available
- Ensure Auto Reboot and F. Reset Time options are selected selected in Odin
while the Re-Partition option is unchecked (this is very important).
- Click Start in Odin and wait for the software to update your phone.
- Once the root installation is done, your phone will reboot
and soon a PASS message with a green background appears in the left-most box at the very top of Odin.
- You can close Odin after device turns on.
- Your Samsung Galaxy S6 Edge is now fully updated with Telus Firmware!
AFTER FLASHING A SAMSUNG GALAXY S6 EDGE FROM T-MOBILE WITH THIS FIRMWARE THE PHONE WILL FINALLY ASK FOR A NETWORK CODE WHEN YOU PUT A NON APPROVED CARRIER’S SIM CARD ON THE PHONE.
AFTER YOU HAVE UNLOCKED YOUR PHONE YOU CAN STILL FLASH A T-MOBILE FIRMWARE BACK TO THE DEVICE SO THAT IT GOES BACK TO ORIGINAL STOCK AND SO DOES NOT LOSE WARRANTY. BUT THE PHONE WILL RELOCK AS SOON AS YOU FLASH IT BACK WITH T-MOBILE FIRMWARE.