Methods and systems enable computers to be equipped and provisioned to access any cellular network without the need for carrier-specific inventory or point-of sale provisioning of the cellular network transceiver. Multiple digitally signed provisioning data images for multiple carriers are stored on the computer's hard disk memory prior to sale. Upon initialization, provisioning data for a selected carrier are downloaded to random access memory of the cellular network data transceiver from the hard disk. A version number within the provisioning data is compared to a version number of provisioning information stored in the transceiver's nonvolatile memory. If the downloaded provisioning data is newer than that stored in nonvolatile memory, the downloaded provisioning data is stored in the nonvolatile memory. The random access memory is cleared of the downloaded provisioning data and initialization of the transceiver is begun. Updated provisioning information can be received and stored to the hard disk.