I switched from Sprint to ATT due to overcharge

[Android Central Question]

After paying off my account, ATT can't use there Sim card on my LV20. Sprints says its unlocked but the LV20 is only compatible to Sprint or Verizon.

 

[hallux]

The Sprint-branded V20 likely won't contain the cellular bands needed to support AT&T. As a result, the phone won't work on that carrier, even if it's been unlocked.

You have the LS997 version? That's the Sprint version, the cellular support is probably going to be different from that of the H910 which is the AT&T version.

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