You can only carry out firmware upgrades over serial. You also need a null modem cable (cross cable) that should have been supplied. There were supply problems with this cable that meant some were despatched with straight through (DTE-DCE) cables. This could be the reason why you could not establish contact over serial.


One of the few remaining Mk1 owners... #00015
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One of the few remaining Mk1 owners... #00015