MAG 254 IPTV HELP NEEDED
So my parents have been paying monthly to some guy who sells mag 254 boxes loaded with an iptv subscription. They pay too much for it, and so I took it upon myself to learn how it's done, considering some random guy can do it. I'm quite tech-savvy, so learning these things is very intuitive. I've done my own research, have found some resourceful sites that sell these services on a monthly basis, which the guy uses but charges more since he's a reseller and my parents don't know any better. On to what I need help or clarification on.
Since the service runs on a monthly plan, I told my parents to stop paying the guy, and I can find out how to do it and it will be cheaper.
When you turn the box on, it says that my 'STB has been blocked', which I'm assuming is what the guy did since we don't pay him monthly anymore. Now, what I want to know is can I reset the box (mag 254) without it 'bricking' the box. Additionally, the sites that offer these services require you to send the boxes (mag 254) mac address so they can link it for you to receive their services. However, the guy who my parents used to pay probably did this already, so would that be a conflict?
If what I said is unclear let me know. If anyone who is knowledgeable in this, and doesn't mind spending a couple minutes explaining this to me, I'd really appreciate it.

