Step 1:Download FLV to 3GPP Converter
Step 2: Launch the FLV to 3GPP Converter:

Step 3: Click
to input FLV video file .
Step 4:Click Profiles Button:
, Choose: "3GPP Format (*.3gp) ."
Step 5: Click
button to start convert FLV to 3GPP.
the process shall be looked like this:

Ok, you have already successful converting FLV to 3GPP, the converted 3GPP filesbe stored in the folder you have previously selected.
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