This problem could be due to the lack of GPRS service. GPRS stands for General Packet Radio Service, and it’s what allows your device to access data. The first thing you should do is perform a soft reset. If that doesn’t work, perform a hard reset. After both resets, check your wireless antenna signal strength. The antenna should show GPRS. If you can still make phone calls and access the Web, then your GSM service is still available. Try sending yourself an email â€“ does it work? If it doesn’t, call your BlackBerry provider. Sometimes, your service could be delayed due to a billing problem or to downtime on the network.