20
SYSTEM UPGRADE
1) OTA (on the air) update
Select Settings -> General -> System Version, select Version Update if any prompt.
2) Upgrade by USB drive
Select Settings -> General -> USB Disk Upgrade, go to Select, and find and choose
the upgrade file on the USB drive, and then select Update.
Select the Wipe Data (system-related settings) or / and Wipe Media (files like
audio, video, and app) to clear the data or / and media files on the device if
needed.
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