This document describes the process for replacing the Power Microcontroller (power micro) firmware on a WORKABOUT PRO G2 (7527). There are three different methods, each affected by the version of power micro and Operating System software currently installed on the device.
Devices that currently have power micro version 1.xx must be sent to a Psion Teklogix Service Depot to be J-Tagged to version 2.xx. Affected date codes are:
Devices that currently have power micro version 2.xx must be individually upgraded using an external media such as an SD memory card or USB memory stick. Affected date codes are:
The upgrade can be performed using the following steps:
Devices with the firmware in the table below support an ARC OS update feature using RAM to safely store the files between the Windows OS and BooSt. BooSt can detect these files and load the new firmware. We can send an Executable or CAB file to install the firmware remotely and automatically.
Current release of Firmware that supports this ARC OS update using RAM are:
Remote methods of distribution may include the use of Mobile Control Center, ARC, Wavelink Avalanche or another method. The application would then execute and copy the firmware to RAM, which is accessible to both BooSt and the OS. After the firmware has been copied to RAM, the application would initiate a boot to BooSt command and the firmware would upgrade normally.