Support
SUPPORT New to T-Mobile? Switching is easy Set up your device Get a T-Mobile ID Sprint Migration Center All get started topics Ways to pay your bill All about your bill Line permissions Your T-Mobile ID Your PIN/Passcode All account resources topics T-Mobile Network In-flight texting and Wi-Fi Wi-Fi Calling International roaming Mobile Without Borders All network & roaming topics Find the right plan Neftlix on Us HotSpot plans Voicemail Use Mobile HotSpot All plans support topics Tutorials Troubleshooting Unlock your device Change your SIM T-Mobile eSIM All device assistance topics Account Hub I-Billing Home Office Internet Collaborate Line permissions All business support topics

Having trouble activating the eSIM on your Samsung device? Let's get it working.

 

Phone with Dual SIM

Get help below if you can't activate your eSIM on your iPhone. For help with these steps, visit our pick your device on the Device tutorials page and use the search bar in upper right.

All issues

  1. If the device wasn't purchased from T-Mobile, make sure that it's unlocked.
  2. Make sure you're connected to a Wi-Fi network and the internet works.
  3. Update the device software to the latest version.
  4. Restart your device and try again.
  5. Click the specific errors below that you're getting and follow any steps.
  6. Change your SIM to the EID of your new device, then try activating with the QR code.
  7. If you're still having issues, contact your Team of Experts

Specific errors

 
Error 525
 
  • This means you're not authorized to make changes on the account.
  • Have the primary account holder log in using their T-Mobile ID when activating.

Still need help?

If you're still experiencing the problem, give us a call or message. It's best if you can call from a different phone than the one you are having issues with.

 
Error 526
 
  • The number you entered isn't associated to the T-Mobile ID you used to log in.
  • Log in with the T-Mobile ID associated with the number you want to activate.

Still need help?

If you're still experiencing the problem, give us a call or message. It's best if you can call from a different phone than the one you are having issues with.

 
Error 528
 
  • The device is unable to connect to the internet over Wi-Fi.
  • Make sure you're connected to Wi-Fi and can access the internet, then try again.

Still need help?

If you're still experiencing the problem, give us a call or message. It's best if you can call from a different phone than the one you are having issues with.

 

Watch with cellular

Get help below if you can't activate your eSIM on your watch. For help with these steps, visit our pick your device on the Device tutorials page and use the search bar in upper right.

All issues

  1. Make sure the phone you're setting up the watch with is on the same account.
  2. If you're switching from one Watch to another, make sure you've changed your SIM to the EID of your new device.
  3. Make sure the Line Settings in your account profile have the correct E911 and usage addresses.
  4. Pair the Watch via Bluetooth only and make sure it's updated to the latest software.
  5. Restart your phone and watch, then try again.
  6. Click the specific errors below that you're getting and follow any steps. 
  7. If the error isn't listed or you're still having issues, contact us.

Specific errors

 
Errors 740, 741, 742, 745, 749, 750, 751, 755, 756, 757, 759, 760, 761, 762, 767, 768, 769, 770, 771, 772, 773, 776, 799
 
  • These errors can occur for a variety of reasons and are generally related to software issues.
  • Reset your device to the factory default settings, then attempt to activate again.

Still need help?

If you're still experiencing the problem, give us a call or message. It's best if you can call from a different phone than the one you are having issues with.

 
Error 746
 

The line doesn't have the right plan for the Watch. Change it online or Contact us so we can update it.

Still need help?

If you're still experiencing the problem, give us a call or message. It's best if you can call from a different phone than the one you are having issues with.

 
Error 753
 
  • This means the watch was activated on a different account than the phone you're trying to set it up with.
  • Make sure you're attempting to pair with a phone on the same account as the watch.

Still need help?

If you're still experiencing the problem, give us a call or message. It's best if you can call from a different phone than the one you are having issues with.

 
Error 754
 
  • The watch is already set up with an existing line of service.
  • Remove the existing plan and attempt to activate again.

Still need help?

If you're still experiencing the problem, give us a call or message. It's best if you can call from a different phone than the one you are having issues with.

 
Error 755
 
  • You're attempting to pair the watch with a prepaid line of service, which does not work.
  • Contact us to see what options we have available.
 
Error 775
 
  • You have too many devices paired with your phone. The maximum is 5.
  • Use the myDIGITS portal to remove an existing line pairing.

Still need help?

If you're still experiencing the problem, give us a call or message. It's best if you can call from a different phone than the one you are having issues with.


Was this helpful?