Stuck scanning files phone works but pics gone HELP anything

I woke up to my phone on and it was back to factory settings and all my photos, contacts, kids, parents vids gone. I'm sick and the data recovery people want $1000.00 to possibly get them back. I have read until my eyes bled. "try to root it... DE-soder the chip. Sprint even told me that my modem is not communicating with the "hard drive". I don't know if these files are still there as when I plug it in the only file it shows is a single ring tone. I will try anything and I'm even willing to pay someone to attempt to recover the info for me. I just don't know where to start and there seem to be people that know so much about this stuff that hopefully someone can point me in the right direction. You guys Rock. My Mother and I thank you for any info that you may be able to provide to help get back these messages and videos of my deceased father. lg ls970. I can talk on it and even check my email but it still says scanning files and if I attempt to download anything it says no room. Thanks again for any direction

All The Best

PS. The phone is bone stock.

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