Recently my friend give a samurai brand digital cabinet as a gift. I seem to had a problem setting the RH. The manual stated press the "set" button for 3 sec and when the screen blink key in the number you want to set the RH from the up or down button, after keying the number press the "set" button again to confirm the setting. I try doing it a few times already but once I press the "set" button to confirm, the RH goes back to 70+ just like factory default. I wonder any csers here use this brand before and care to share with me is the way I set correct or the cabinet has defect. I myself had 2 cabinet but not fully digital so I never encounter this before. Please advise me on this.