spartan trainer hard reset failed. need old version firmware

jupiter jonessy

im failed to do hard reset. maybe it was caused by the firmware. my spartan trainer still version 1.10.28 but the oldest version on this website (https://www.suunto.com/en-gb/Support/Software-updates/Release-notes/suunto-spartan-software-updates/) is version 1.11.56

so i think i need the older version of firmware (version 1.10.28) to rest my spartan trainer.