How can I get a sprint blackberry phone to work with a t-moblie sim card?
Answer I’m afraid that this isn’t possible. There isn’t anything that you can do to a Sprint BlackBerry to make it work with T-Mobile service. The Sprint BlackBerry is a CDMA device (for the US) and T-Mobile requires a GSM device. I would strongly recommend that you either consider giving away or selling the Sprint device to someone else who has Sprint service and get a new device to work with your T-Mobile service. I hope this helps. Thanks.