I do Renport and my Sprint has "local" coverage down in the BVIs

Here are the Sprint Settings....

Please follow these settings on the phone once you arrive in British Virgin Islands.
1. Connect to wifi and To update the Data Profile, please follow these steps:
Settings > System Update > Update Profile > OK > The Data Profile will be updated > Update PRL > OK
> The PRL will be updated (please try this a few times as it may not go through on the first
attempt)
Once that is completed or even if it keeps failing please follow these settings Step 1: Turn wifi
and bluetooth off
Step 2: From the Home screen, drag down the Notifications bar. Tap the Settings icon. Tap Mobile
Networks > Network Mode > GSM/UMTS. Check the GSM/UMTS radio button.

When prompted to select Automatic or Manual, select Manual then select one of the available
carriers. Should you have any other concerns, please let me know.
Thank you,