Signal during update: Update your phone where signal reception is good, and do not change
location during the update process. Make sure the battery is adequately charged before
beginning an update. A weak signal or low battery during an update may cause the update to
fail. An update failure may disable the phone.
Other functions during update: Other phone functions cannot be used during a software
update.
Wi-Fi Update Cautions
During update: The phone cannot be used until the software update is complete. It may take
time to update your phone's software.
Signal during update: Update your phone where Wi-Fi signal reception is good, and do not
change location during the update process. Make sure the battery is adequately charged before
beginning an update. A weak Wi-Fi signal or low battery during an update may cause the
update to fail. An update failure may disable the phone.
Other functions during update: Other phone functions cannot be used during a software
update.
Update Your Phone Software
You can update your phone's software using the System Update option.
Before Updating Your Phone
Updating your phone may result in a loss of saved data depending on the condition of your phone
(malfunctioning, damaged, water seepage, etc.). You must back up all critical information before
updating your phone firmware.
Enable Backup of your device
To back up your personal data:
Basic Operations
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