Firmware for MJ Tetrad

[Mark Nance]

Bio-Rad's mail-in service is much less expensive than their on-site service.  At this point, you should talk to Bio-Rad through your sales rep instead of tech support.  Tech support has no incentive to help, but your sales rep wants your future business.  I don't know that they will give you the old software for free, but they might let you mail in your tetrad so that they can put the old software on.  Explain specifically that you think the hardware is fine and that it is most likely a software problem; Bio-Rad sells enough products that the phone operators don't understand how all of them work.  Re-explaining it as a software re-install problem that could be done at their leisure in California could be much cheaper than paying for an airplane ticket and 24 hours of tech time for a service call.  

NEVER do a firmware upgrade unless there is a very good reason for it.  Many software upgrades make sense, and can be undone, but firmware upgrades are an opportunity for you to brick your computer and are rarely reversible.  

Good luck,
Mark