Got a bug I can't figure out

[SamuelDD]

I recently was given a Solo and was only told it had some communication issues between the remote and the Quad. I used to be able to fly normally, but now, when I try to pair it with my remote, it starts a repeating loop of 4 tones and I can't do anything to stop it besides power it off. Any suggestions before I decide to sell it off for parts?