Methods and systems are described for updating software or firmware or otherwise conveying target software to an electronic device. Target software may be conveyed while the device is packaged or otherwise not connected to external power. Information indicating a current software or firmware version number may be transmitted from an external transceiver to the packaged device. A software update may also be transmitted to the packaged device. The electronic device may use stored information or the stored software update to replace an older and out-of-date software version. The electronic device may also harvest electronic power from an external transceiver signal or may use power from an internal battery source to affect a software update when the device is packaged or otherwise not connected to external power.