The PR2 Plus firmware update is robust if you respect the serial timing and use true XMODEM-CRC. The most common mistakes are using a straight serial cable (not null-modem) or a cheap USB-UART adapter that drops characters. For bank branch environments, keep a dedicated industrial FTDI cable and a DOS laptop with a real COM port – the PR2 Plus is a legacy masterpiece that demands legacy discipline.
Staying current with firmware is vital for this specific machine because:
The PR2 Plus firmware update is robust if you respect the serial timing and use true XMODEM-CRC. The most common mistakes are using a straight serial cable (not null-modem) or a cheap USB-UART adapter that drops characters. For bank branch environments, keep a dedicated industrial FTDI cable and a DOS laptop with a real COM port – the PR2 Plus is a legacy masterpiece that demands legacy discipline.
Staying current with firmware is vital for this specific machine because: Olivetti-pr2-plus-firmware-update
