No way to skip music without unlocking phone ?

Or am I missing it ?

Any audio player with skip and rewind?

I use my phone to listen to recorded speeches.
I am looking for a player capable to skip forward and to rewind back a few seconds.
A plus could be also the change in speed.
My search has produced nothing useful so far.
Any hint?

Samsung Edge + won't skip the initial setup

So I got my Samsung edge + 3 weeks ago. It was working perfectly fine, until one day I screwed up by touching the finger sensor in the wrong position which then led to the phone asking me for my back up password. and guess what? I forgot it. So I did a factory reset to it. and in the initial setup where you pick the language, it keeps asking me to establish an internet connection. It connects to my wifi normally but then gives me a message saying "no internet access", and I can't skip it. If I put in my simcard, it would pass that stage but then goes to " establishing connection", I wait for several minutes and then it gives the same message "no internet access". the skip button in the bottom right corner does not work also. I used odin to flash my phone with the latest firmware. I followed all the instructions and the flashing was a success, but when my phone turned on, it still had the same problem.

Oh and my phone model is SM-G928c.

Please save my ass