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4G MiFi ESN Switch

imdickie

Newbie
Not Android related, but...

I have a super low all you can eat rate on the embedded 3G card in my Lenovo T410s. This is the second Lenovo I've had so I know I can change the ESN from one embedded device to another. My question is if I pay full price for a 4G MiFi device like the Samsung SCH-LC11 and just do an ESN switch will my same plan carry over or will Big Red see that it is LTE and start charging me the God awful data rates they have for LTE?
 
To activate a LTE device, requires a 4G Sim card and to activate that would require a change to a 4G data plan. 3G data plans are not compatible with 4G devices and vice versa.

00smurf
 
To activate a LTE device, requires a 4G Sim card and to activate that would require a change to a 4G data plan. 3G data plans are not compatible with 4G devices and vice versa.

00smurf

Good call. ESN registering is a CDMA thing whereas LTE is more GSM-like with the SIM cards. Likely the MiFi has both for backwards compatibility but you're not using 4G without an activated SIM card.
 
The 4G devices are backwards compatible with 3G service, but still use a sim card. There is no built in CDMA antenna. And once it's activated the unlimited data on 3G would be lost and not able to regain. Also any change back to a 3G plan would require a new sim card to reactivate the 4G device.
 
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