Current Version: 1.0.372 Instructions: 1) Download & install FlashWriter (3.18 MB). 2) Obtain the latest firmware / configuration zip file. It can be found by clicking the following link: http://www.sarians.co.uk/firmware/flashwriter/ NB It is of the utmost important that the correct firmware file is used for the correct Sarian model number. If you attempt to load firmware designed for one model onto a different model in most cases the unit will have to be returned to the factory for repair. A charge is made for this service. To locate the correct firmware for your model, after clicking on the link above select the sub folder with the name of your Sarian model. Finally download the zip file which contains the latest version number. The format of the file name is as follows: <model name>-<firmware version><option>.zip As an example the file called IR2140-4572s.zip is firmware for the IR2140 model and is firmware version 4.572. This file is found in the IR2140 sub folder after following the above link. 3) Extract both the .all and .ini file to the SAME FOLDER on your computer using a un-zip program. 4) Connect the nominated port on the Sarian to a free com port on your PC via an RS232 compatible serial cable. 5) Close all other programs running on your PC. 6) Run "FlashWriter" by selecting "FlashWriter.exe" from the "Sarian Flash Writer" folder in the Windows Start Menu. 7) In Sarian Flash Writer, select the correct communications port. 8) Click the "Load" button. 9) Click Yes, then OK and select the ".all" file you extracted earlier. 10) Follow the instructions 11) Once complete you may be prompted for the site specific data, you can miss any of these out by clicking the cancel button. DOCUMENTATION AVAILABLE Further technical information can be found in this file.