© 2018 mPTech. All rights reserved. Hammer Iron 2 - EN
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17. Smartphone software update by OTA
From time to time, the manufacturer provides system software update, so that
the devices receive new possibilities, patches, etc. Enter [Settings] > [About
phone] > [System Update] to check if an update is available and if so, you can
download it from the Internet and install on the device.
The internal memory of the device is NOT used for updating system software, so
during the upgrade process you may receive the message "Downloading and installing
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. To properly perform the update
process, insert the SD card and specify it in the system as an external memory. If the
card is specified as an extension of internal memory, the update will not be possible.
The 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 charger while the update is ongoing.
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. 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 40ºC 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.
