SME29X and UC290 products are upgrade-able. If you have an old version, or want to try out special releases, please download SME29X FU, firmware upgrader tool and contact with us and request encrypted hex file of the interested firmware version.

Latest Public Release
Firmware Version: "Serial 1.06 0801"
Release Date:  21 January 2008
Known Issues: No known issues
Devices: SME290-Mini , SME291, UC290.

Description:
Standard firmware version used in SME29X and UC290 devices.Modules sent out from our manufacturing facility burned with this firmware

Special Firmware Release
Firmware Version: "Serial A.00 0812"
Release Date:  20 December 2008
Known Issues: No known issues
Devices: SME290-Mini , SME291, UC290.

Description:
Dynamic Remote IP Feature is added in this firmware version. This firmware is based on Serial 1.06 version. But module will communicate with the final Remote IP that had communicated with the module.
Latest Remote IP will be stored in RAM. Therefore after a reset or POR, Remote IP information will be loaded from the flash memory that user defined. In standard Serial 1.06 version, module only communicates with the Remote IP that is configured by the user.