HTC 612 Manuel D’Utilisation

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Back up data and files
Keep only the most recent data in your apps and files that you often need
to use. You can back up your other data and files. For some tips, see 
Disable some apps
Move some apps to the storage card
Some third-party apps can be moved from the phone storage to the
storage card. Go to Settings > Apps > On SD card to see which apps can
be moved. To move, tap an app, and then tap Move.
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Moving apps to the storage card doesn't back up the apps. If you
do a factory reset, your phone loses the apps. You'll need to
reinstall them.
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When you remove the storage card and insert it in another phone,
the apps on the storage card won't be installed automatically to
the other phone. You'll need to reinstall them.
About storage encryption
On the phone storage, you can encrypt data such as your accounts,
settings, downloaded apps and their data, media, and other files. On a
storage card, you can only encrypt files.
Set a lock screen PIN or password before you start encryption. Fully
charge the battery first, or keep HTC Desire 612 connected to the power
adapter during encryption. This process may take about an hour or so.
Storage and files
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