recovering 3gp file from mobile phone memory or sd card

I wanna recover 3gp files from my previous sd card and current mobile phone. There are a few questions I wanna ask:

1. I found that the searching criteria of video format in recuva do not include 3gp, then how can I scan those deleted 3gp files?

2. I want to recover 3gp files from my previous micro-sd card but I lost the card already. Before I lost the card, I copy the content of the whole miicro card to the desktop. Can I scan and recover those deleted 3gp files from the copied folder?

3. The software cannot detect my mobile device. I can access the drive through my laptop, but it is not on the list of recuva scanning process. How do I scan my phone using recuva?

Thank you for your kind help.

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