Wind River Solution Accelerator for Android, User Experience

The system you design must be able to address the following:

• Recovering from failures (e.g., corrupt update packages or power loss during updates)
• Preventing malicious attacks (e.g., unauthorized update pack­ages)
• Interacting with other parts of the system (e.g., updating the modem firmware)

Unlike many other firmware over-the-air (FOTA) solutions, simplicity is the key principle in the design of the Wind River® solution. It allows a lightweight update method to be quickly integrated into any Android system with much lower cost. The solution provides the following:

• Browser-based and USB disk/SD card–based update mechanism
• Error tolerance for power off, corrupt package, and disk error
• Security that allows only authorized and signed update pack­ages to access the device
• Software-specific updates including boot loader, boot (Linux kernel), system, data, recovery, and firmware