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PRIME 2
24
The internal memory of the device is NOT
NOT
NOT
NOT used for updating system software, so
during the upgrade process you may receive the message "Downloading and installing
"Downloading and installing
"Downloading and installing
"Downloading and installing
an update requires an SD card
an update requires an SD card
an update requires an SD card
an update requires an SD card." It means that the update file is so large that it does
not fit in the standard cache memory of the device. Therefore, to properly perform the
update process, insert the SD card and specify it in the system as an external memory.
external memory.
external memory.
external memory.
If the card is specified as an extension of internal memory
extension of internal memory
extension of internal memory
extension of internal memory, the update will not be
possible.
Remember that updates tend to have an expected size counted in hundreds of
megabytes, so we recommend that you carry them out when connected via Wi-Fi.
Updating via the GSM network may contribute to the operator charging for data
downloaded from the Internet.
Please remember that before upgrading, the battery charge level should be higher
than 30%. If it is lower, plug the device to the power grid and charge the battery to
100%
While updating the device might restart on its own a few times. You should not
remove the battery or use any of device features, as this may cause the device to stop
working.
18.
18.
18.
18. Safe use of the battery
Safe use of the battery
Safe use of the battery
Safe use of the battery
The battery may be charged with USB port in the computer or laptop. Nevertheless, it
is not a recommended form of charging an operating device due to the low charging
current offered by the USB - even though the device is connected to a power source
battery can still gets discharged. If you wish to charge your device this way turn off
the device. If the battery level is low, recharge it to continue the use of the phone. If
you wish to prolong the battery lifespan, discharge the battery beneath 20% of the
battery capacity and charge it back to 100%. If not used, unplug the charger from the
phone. Excessive charging might cause shortened battery life. The temperature of the
battery has an impact on its charging cycle. Prior to the charging process, cool the
battery or raise its temperature so that it is similar to the room temperature. If the
battery temperature exceeds 40
º
C the battery must not be charged! Do not use a
damaged battery! The battery lifespan can be shortened, if it has been exposed to
very low or very high temperatures - this causes interference to the phone, even when
the battery has been properly charged.
19. Maintenance of the device
19. Maintenance of the device
19. Maintenance of the device
19. Maintenance of the device
To prolong the lifespan of the device act according to these instructions.
•
Keep the device and its accessories out of reach of children.
•
Avoid contact with liquids; it can cause damage to electronic components of the
device.
•
Avoid very high temperatures for it can shorten the life of phone electronic
components, melt the plastic parts and destroy the battery.
•
Do not try to disassemble the device. Tampering with the device in an
unprofessional manner may cause serious damage to the phone or destroy it
completely.
•
For cleaning use only a dry cloth. Never use any agent with a high concentration of
acids or alkalis.
