21
1
Turn on Bluetooth on the iPhone.
2
Tap the icon of the app.
3
Tap “Check for Update” on the bottom of the screen.
Firmware information and instruction for the update appear on the screen.
• When starting the app for the first time, the firmware information and instruction for
the update appear automatically without tapping it.
4
Change the mode of the watch to [
PR
].
• Charge of the watch is not enough if the second hand points “
LL
” and the update is
stopped. Charge the watch and try to update again.
Updating the firmware of the watch
