How to change system language
1. The first step in the boot wizard when a new phone is turned on for the first time is to
select the language (if you have used a mobile phone to switch languages, you can restore
the
factory settings and follow the same steps as a new phone settings)
2. Go to Settings-System-Language and Input Method-Language-Add Language-select the required
language to add, then press and hold the required language name in the added language list
and
drag it to the first line to complete the system language switching ( This setting cannot
change
the language inside a self-installed third-party APP).
My mobile phone system is currently Android 12, can it be upgraded to Android 13?
Hello, dear user! The Android system version that all our products are adapted to when
leaving
the factory is the best software version for the device and the optimal configuration to
ensure
user experience. It is not recommended that you update just to pursue a higher version of
Android; upgrade from Android 12 to Android 13 In addition to the mobile phone hardware
configuration support, the R&D department also needs to have a corresponding version
development
plan and debug the adaptation software to the best state. Currently, we have not received a
notification about the Android system upgrade plan for a higher version of this model. If it
can
be upgraded, , new version updates will be pushed online in a timely manner. Please pay
attention to the mobile phone system update information push. Thank you for using Doug
products!
System cannot be upgraded
The system can not be upgraded can be divided into the following cases of
troubleshooting:
1. System update can not detect the new version, please confirm that the phone network
connection is normal, if you click on the system update prompt has been the latest version,
it
is generally not necessary to update, if the version date is too old and can not detect the
update, you can provide the phone IMEI, SN, version number by e-mail to the after-sales
verification solution.
2. If the system update can detect the new version, but the download fails, please check the
network reason, usually the cell phone network signal is not good or network congestion
caused
by the download failure, it is recommended to change the time or network to re-download.
3. The new version of the system was downloaded successfully, but after restarting the phone
did
not enter the upgrade installation interface or installation failed.
① may be the network instability caused by the download of the system program error, need to
change the time or network to re-download;
② If the phone is inserted into the TF card, may lead to file reading errors, please remove
the
TF card to download the system again;
③After excluding the above factors, long press Settings-Application Information-Storage and
Cache-Clear the storage space and cache, and then re-download.
System is slow and unresponsive
The possible reasons for a slow running cell phone are as follows:
1, too many programs running in the background resulting in too little remaining capacity of
the
phone's RAM, there is not enough remaining space to run new programs (Android phones that
have
been used for many days and have not been turned off will also take up too much RAM
space);
2, too much data occupy ROM memory, not enough capacity for the system to run smoothly;
3, the user installs a third-party theme software or other rogue software (will
automatically
run to take up space, and the user can not see), a large number of system resources,
resulting
in slow system operation;
4, when the power is low when entering the power saving mode, the system will reduce the
brightness and operating efficiency, will also feel slow running;
5, the external SD card rate standard is low or the SD card is damaged, resulting in reading
the
SD card file is very slow, or can not read (always read), sometimes also affects the
efficiency
of the entire system.
We suggest you do the following troubleshooting operations:
1、Check whether the phone has installed a third-party theme or other large-scale
software;
2、Turn off the phone and take out the SD card, then reboot the phone (do not select the
reboot
option), completely close all the programs running in the background;
3、After rebooting, please check whether the remaining capacity of the phone's ROM is
sufficient
(it is recommended to keep at least 1GB or more), and regularly use the system settings to
clean
up the system cache data and junk files;
4, ROM capacity is sufficient or running slow, please try to restore the phone to factory
settings;
5、If there is no improvement in the operation efficiency after restoring the factory
settings,
please return the phone to the after-sales service. (If only the memory configuration of low
cell phone, personal subjective feeling of slow except the case)
Cell phone occasionally appears to restart automatically
1. The phone has not been turned off for a long time, too many programs running in the
background, resulting in the exhaustion of system resources or other abnormalities, which
may
lead to reboot phenomenon. It is recommended that you close the less frequently used
applications, regularly use the system settings to clean up the system cache data and junk
files
and restart the phone manually, and observe whether there is still an abnormal reboot after
a
period of time.
2. When the temperature of the phone is too high, it may activate the phone protection
function
to restart automatically, so we suggest you do not use it while charging, or leave it in a
hot
environment.
Occasional crashes and jams
1. Please try to restart the phone.
2. The phone has not been turned off for a long time, running too many programs in the
background caused by the exhaustion of system resources or other abnormalities, which may
lead
to the system crash. It is recommended that you close the infrequently used applications in
your
daily use, regularly use the system settings to clean up the system cache data and junk
files
and manually restart the phone, and observe whether the system still crashes after a period
of
time.
3. When the temperature of the phone is too high, it may cause the phone to crash, so we
suggest
that you do not use the phone while charging, or place it in a high temperature
environment.
4. If you exclude the above factors, please download the phone firmware and brush tool,
through
the computer wired connection for firmware upgrade, if still can not be solved, please find
after-sales service.
Black screen while talking
1. Nowadays, cell phones are equipped with distance sensing function, when the distance
sensor
above the screen is blocked (such as in the ear, cover the top of the screen with your
hand),
the screen will be closed , this phenomenon is a normal situation.
2. The power-saving function of the phone, the phone has a built-in light-sensing system,
when
the phone is close to the head, the light-sensing system detects that the light is dimmed
and
enters the black screen state to save power, the phone leaves the head, the screen returns
to
brightness.
3.If there is no cover on the top of the screen also black screen (such as being placed on
the
desktop), please check whether there are stains in the sensing area, if there is, please
clean
it, if there is no stain, try to restore the system to the factory settings, if it still
can't
be solved, then you need to after-sales service.
Turns off the phone automatically
1. Please make sure the phone has enough battery power first, the phone will shut down
automatically when the battery is low.
2. Please make sure if you touch the power p by mistake, press and hold the power p
for more than 10 seconds, the phone will automatically shut down and restart.
3. If your environment temperature is too low, the chemical activity of the battery will
deteriorate, the battery may not be durable, and the phone will turn off automatically after
rapid consumption.
4. The temperature of the cell phone is too high, the cell phone has overheating protection
function, if the temperature of the motherboard is higher than the threshold value after a
period of high load operation, the cell phone will shut down automatically.
5. If all of the above reasons are excluded, or will frequently shut down automatically, you
can
restore the factory settings (backup data before restoration), if still can not be resolved,
please download the phone firmware and brush tool, through the computer wired connection for
firmware upgrade.
6.If the problem still exists, you need to overhaul the hardware.
How to move desktop icons
1. Select an icon: Press and hold an icon to enter the selected state and drag it.
2. Add a new desktop: Drag the icons to a blank desktop to add a new desktop; conversely,
drag
all the icons on a desktop to other desktops, the desktop will become a blank desktop, and
then
it will automatically delete.
3. Long press an application icon until it is selected, drag it to another application icon,
a
folder will be automatically generated, click on the folder > click on the file name to
enter
the file name editing state, and you can change the folder name.
4. Press and hold a blank space on the desktop, select the organizing icon at the bottom,
you
can drag other icons to the selection box at the bottom, then select the desktop you want to
place, and drag the icons in the selection box to the target location.