US Patent 8713137 Fail-safe upgrading of portable electronic device software

A portable communication device is provided that receives upgrade files via at least one wireless coupling. The contents of the upgrade file include information to repair errors in software components of the portable communication device and/or information to upgrade functions of the portable communication device. The portable communication device automatically upgrades the software components using the upgrade file contents. The portable communication device automatically recovers to an operational state when detecting an error or failure during the automatic upgrade. Further, the portable communication device resumes or reinitiates the automatic upgrade following the error or failure.