just change the charging cable!
Very often the original cable is not packed with the phone, it charges very slowly.
Even the cable that comes with wireless charging charges your smartphone twice as fast.
The normal charge cycle of this smartphone is 5 hours (via cable)

ityuuu85 wrote:

What is function this key? Can it be programmed? How?

Settings /Smart assistant /Shortcut button

Test menu: (the engineering menu is no longer in the new software)

for the regular version:  *#87#
"Pro" : *#*#33#*#*

TO HERE TO WRITE I HAVE A TRANSLATOR ONLINE, BECAUSE I DO NOT KNOW English in order to read here, I also use Google’s page translator All instructions are written on 4pda I don't understand what's stopping you from using a translator? Is it really that hard? I can’t write correct instructions here i...

Hello! This smartphone is currently made with Android 8.1 out of the box. This is a long time ago everyone knows. who bought a smartphone recently has 8.1 on it Personally, as an experiment, I drew a ROM dump from such an instance. So that this ROM can be considered officiall I contacted company rep...

Здравствуйте! Этот смартфон в настоящее время производится с Android 8.1 из коробки. Это давно всем известно. который купил смартфон недавно имеет 8.1 на нем Лично, в качестве эксперимента, я обратил дамп ROM от такого экземпляра. Так что этот диск можно считать officiall Я связался с представителям...

the main problem after the transition from 7 to 8 I showed on the screen if it doesn’t bother you, you can upgrade to your health! Also in Android 8, battery statistics not displayed otherwise, it is not much different from android 7 Personally, I do not even see the point of updating .. A lot of pe...

source link ROOT

I want to remind everyone, in order to download from the site 4pda  registration is necessary!

official ROM android_7.1.1 can be downloaded here official ROM(backup) android_8.1 can be downloaded here a warning! make all experiments with the device at your own risk carefully read the description of the firmware on the site 4pda Android 8 has flaws. My personal opinion - Android 7 is better! f...

ROM (backup) bv5800Pro v01-20180614:   download