I just got a Huawei ascend, so far it's been a good phone for me I've got a couple of questions about it that IM having heck finding any info. my first question is under my phone settings storage there's this option to click that says software upgrade when u click it it says upgrade via sd card what's this for and what's it do? my next question is when u download an app and uninstall that app does it get rid of all the files of that app or are they still in ur phone if so how can u get rid of those files?? Thanks for any info provided

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