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Fat32 in Android usually only applies to the External SD card, no longer supported by Google. AFAIK it was a fairly generic implementation as it was only for the card. Since most of the newer devices use eMMC,the file system android uses is ext4 except for firmware, which is vFat. Example below is from a Galaxy S4 /system ext4 /data ext4 /cache ext4 ...


This is mostly speculation, but mediaserver is probably what is used to play all and any sound on android. Some app was probably using mediaserver inappropriately, causing it to show as using excessive battery. logcat2 is probably the process used for logging output, and is where many debug and error messages are sent to. Outright deleting them probably ...

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