Everytime I try and turn on Wi-Fi calling this notification pops us sayin Error: ER05. It tells me my SIM card needs to be updated. Is there anyway to do this without bringing it into the store?
you need a new SIM card.
you can order one online -- but they're free exchange in store.
Did you switch to the sim card that came with the device?
I have the same problem. I believe the Tmobile rep switch the original card that came with the phone with another sim card for some reason. I now have the TM9073. Dont know if this is the issue.
The sim card that is required for your device to be able to wifi call is labeled with a TM9177 so if you have a TM9073 you need to update that at your local T-Mobile store.
Changed my sim card to a TM9177 and it worked. Thanks Keith. Happy New Year to everyone!
Awesome news thanks for letting us know so others may benifit!
where is an exchange store
Been having same issue with my LG G3 lately. Same sim that came with the phone. Do they ever require upgrades to continue working? I've also gotten a no USIM message. Is this a free exchange from t-mobile or do we need to pay more money for it?
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