HIMS International Corporation H432B 用户手册
20.15.11 Sleep Timer
Set Sleep Timer: Space-j (dots 2-4-5)
20.15.12 Upgrading the Braille Sense U2 Firmware
Check download information: Space-i (dots 2-4)
Cancel download and exit: Space-z (dots 1-3-5-6)
Cancel download and exit: Space-z (dots 1-3-5-6)