If anyone is doing dev work the only thing you should have to say to them is thank you. Even if you brick your phone. It's not their fault you didn't follow instructions or the carrier may have made a change in the device since they put their work out there for you to use. Research it before you do it and it will greatly reduce the chance of failure.
It's just like a few other hobbies I have if you want to play you better be willing to pay. Trust me a bricked cell phone is cheap compared to an exploded turbo.