Cell phone help
 

I know this isn't a forum for cell phones, but I have a problem.

My phone just failed, and my company doesn't care. So, I just got 2 phones from my aunt, both Samsung x427ms, is it possible to:

1. unlock this phone to use with my prepaid (one is requesting the PUK)

2. install Linux on them and then use that to use my prepaid.

Either way would be helpful. Thanks!