![media-tech MT855 User Manual Download Page 4](http://html1.mh-extra.com/html/media-tech/mt855/mt855_user-manual_1760447004.webp)
4
EN
2. Install nanoSIM card (it is not necessary, smartwatch can still make
phone calls via Bluetooth). Slide hatch, open up, put nanoSIM card,
close, slide again to lock.
3. Install microSD card – slide microSD card into slot (it is not necessary).
4. Install rechargeable battery.
5. Put back battery cover.
Charging
Use USB cable and plug into USB charger or USB port in PC computer.
During charging battery icon will animate. After ca. 2 hours battery is full,
battery icon animation is stopped.
Note!
We recommend to perform at first three full charging cycle in order to
format built-in battery. If device is not used for longer timer please charge it
once a week at least.
Power on/off
Press and hold home button for 3 seconds to power on the device , repeat
this action to pop-up question, confirm to power off the device. When