Sprint's CDMA network shutdown
Sprint will be shutting down its CDMA network on Friday, December 31, 2021.
In order to respond to this shutdown and to ensure the stable use of the America Flat-rate option, customers using the option will need to update their USIM card.
Customers who need to update their USIM card
Customers using iPhone 6 or a later version of iPhone
What may happen if you do not update your USIM card
Customers using iPhone 6 / 6 plus / SE (1st generation) / 7 / 7 Plus / 8 / 8 Plus / X
In Sprint's LTE area, your phone may try to connect to a Sprint network and may temporarily display as having no service.
After a while, your phone will be automatically connected to a carrier besides Sprint.
Customers using iPhone XS / XS MAX / 11/11 Pro / 11Pro MAX SE (2nd generation)
Your phone will be connected to a Sprint network when you are within the Sprint LTE coverage area.
Data usage is possible, but voice calls will not be possible.
How to update your USIM card
After updating your USIM card, you will not be able to use the Sprint network. The America Flat-rate option will continue to be available using carriers such as T-Mobile USA and AT&T.
Please perform following three operations:
1. Update your USIM card
By performing the following, your USIM card will be updated.
After updating, you will not be able to use the Sprint network.
Tap "Settings" > "Cellular" > "SIM Applications" > "Update".
Confirm that "SIM settings are up to date." is displayed.
This example is for iPhone 12 Pro MAX (iOS 14.4.2).
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STEP 01
Tap "Settings"
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STEP 02
Tap "Cellular"
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STEP 03
Tap "SIM App"
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STEP 04
Tap "Update"
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STEP 05
Tap "OK"
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STEP 06
When the following screen is displayed, tap "OK"
2. Check settings
Tap "Settings" > "Cellular" > "Cellular Data Options" > "Data Roaming" and turn on "Data Roaming".
This example is for iPhone 12 Pro MAX (iOS 14.4.2).
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STEP 01
Tap "Settings"
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STEP 02
Tap "Cellular"
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STEP 03
Tap "Cellular Data Options"
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STEP 04
Turn on "Data Roaming"
3. Restart your iPhone
Tap "Settings" > "General" > "Shut Down". The power will turn off.
Press and hold the side or top button on your iPhone. The power will turn on.
This example is for iPhone 12 Pro MAX (iOS 14.4.2).
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STEP 01
Tap "Settings"
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STEP 02
Tap "General"
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STEP 03
Tap "Shut Down"
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STEP 04
Slide to turn off the power
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STEP 05
Turn on the power
Press and hold the side or top button.
Your USIM card will be updated automatically, including customers in Japan.
There is no need to take action yourself.
- You can also perform the "Update your USIM card" procedure described on this page by yourself.