User's Manual

• Touch and the phone will search for the latest software. If you

want to update the system, touch the button, and when that’s

finished, touch to complete the upgrade. Now your phone will

have the latest version of the software. You should turn on data

connection or Wi-Fi before searching for updates. Settings for auto-

check frequency are also available once you restart the phone. If

you have chosen auto-check, when the system discovers the new

version, a dialog will pop up to choose download or ignore, the

notification will also appear in status bar.

• During FOTA downloading or updating, to avoid errors in locating

the correct update packages, do not change your default storage

location.

• Use Factory data reset and Mobile Upgrade tool to perform phone

formatting or software upgrading (to reset factory data, hold down

the Power key and the Volume up key at the same time when

powered off). ALL User phone data: contacts, photos, messages and

files, downloaded applications will be lost permanently. It is strongly

advised to fully backup the phone data and profile via Smart Suite

before doing formatting and upgrading.

• Please pay attention that after Factory data reset is performed you

may be requested to enter Google account credentials* that were

used on this device before Factory reset. Otherwise you will not be

able to use the device. If you don’t remember your Google account

credentials please complete Google account recovery procedure.

In case you don’t succeed in it - please apply to authorized repair

center, but remember that it will not be regarded as warranty case.

* Applicable for Android OS versions starting from 5.1.

and carry out the following checks:

My phone cannot be switched on or is frozen

• If the phone cannot be switched on, charge it for at least 20 minutes

to ensure the minimum battery power needed, then try to switch

on again.

• If the phone falls into a loop during power on-off animation and the

user interface cannot be accessed, press and hold the Power key and

the Volume up key at the same time to reset. This eliminates any

abnormal OS booting issues caused by 3rd party APKs.

My phone has not responded for several minutes

• Restart your phone by pressing and holding the Power key.

• Remove the battery and re-insert it, then restart the phone

• If it still does not work, use Factory data reset to reset the phone or

Mobile Upgrade to upgrade software.

My phone turns off by itself

• Check that your screen is locked when you are not using your phone,

and make sure the Power key is not accidentally contacted while the

screen is unlocked.

• Check the battery charge level.