Support New LG-L38C User & First-Time Android User

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http://androidforums.com – I'm hoping this is in the right section. I have an LG-L38C (Walmart Smart Talk phone) and I'm running really low on internal memory. I'd like to move some apps over from the phone's 1GB of internal memory over to the 4GB SD card. Does this mean I need root/SU access to the phone? Is there a recommended app for this? I'd like to do the following but I'm having a hard time finding out if it's possible. Iv'e spent about 4 hours searching and have not found answers. Put 8gb SD card instead of 4gb that comes with the phone Tethering app (ideally wifi and bluetooth) Move over apps fr (General)