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Boost mobile 1st sim card

soxtober05 said:
It's a UICC card...evidently all LTE phones need them now...

What is a UICC and how is it different from a SIM card? | Just ask Gemalto
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Correct.

The phone is still a CDMA phone. Not GSM.

GSM and CDMA phones both use the same 4G LTE frequency. So CDMA phones do require a UICC card for 4G to work. Notice on a CDMA phone, you can use the phone without the UICC card and it will still get 3G. Not so with a GSM phone. On a GSM phone you wouldn't be able to do anything except call 911.
 
sammyz said:
Correct.

The phone is still a CDMA phone. Not GSM.

GSM and CDMA phones both use the same 4G LTE frequency. So CDMA phones do require a UICC card for 4G to work. Notice on a CDMA phone, you can use the phone without the UICC card and it will still get 3G. Not so with a GSM phone. On a GSM phone you wouldn't be able to do anything except call 911
Click to expand...
 
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