What should I pay attention to when upgrading the LN Rubidium's firmware?

What should I pay attention to when upgrading the LN Rubidium's firmware?

Please Note that the latest versions of Flash Magic contain a new communications option that is likely set incorrectly by default. If this setting is incorrectly selected, Flash Magic may not be able to communicate properly to the processor. Open the “Options” and “Advanced Options” tabs on the application. Please ensure that the “Use My Line Feed Settings”, “Send Line Feeds”, and “Expect Line Feeds” options are all highlighted and selected WARNING :Make sure NOT(!) to check the box marked “Erase all Flash+Code Rd Prot” under any circumstances, this may erase factory calibration data, and the unit will not operate and will have to be returned to the factory. Checking this box on the ISP utility will thus void the warranty.