• 17 December 2021
  • 2 replies


I have upgraded from a 4G LTE to a 5G phone. Do I need a new sim to be able to enjoy the increased speed?

2 replies

Userlevel 7
Badge +15

Only if your SIM is more than 3 years old.  Even most SIM’s that old, would be fine.  Anything older, get a new SIM.  Make sure your new device is set to NR(5G) and that the APN is correct.  If you bought the device from T-Mobile, it should all be good out of the box.  For 5G to work, there has to be 5G available where you are using your device as well.  

Userlevel 6
Badge +9

If you pull your current SIM and look at it (you may need a magnifying glass) and it says either TM9263 or R15, you should be fine.