Introduction
Sometimes you need to clear the cache, for example when an OTA update hangs instead of rebooting.
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            Shut down your phone by holding Power and tapping Power Off 
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            Hold down Volume Up then Power until you see Recovery <<== 
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            If the arrow does not point at Recovery press Volume Up until it does 
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            Press Volume Down and wait a few seconds 
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            When you see No command, hold Power and Volume Up until you see the menu shown 
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            Choose Wipe cache partition using Volume Up/Down then Power 
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            Choose Reboot system now using Volume Up/Down then Power 
 
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