Can someone who has been sentenced in a Federal prision fight his case again?

My boyfriend got sentenced three months ago and his date to come out is until 2015, so I just want to know if there is anything I can do from the outside to shorten his time. The reason: He had weapons at home. and had one on him.Can someone who has been sentenced in a Federal prision fight his case again?
Get an atty and file an appeal.Can someone who has been sentenced in a Federal prision fight his case again?
The only way to have his case heard again is if there is new evidence that was not mentioned in original case, also if he can prove his defense lawyer was incompetent during the trial. The only way to shorten his time in prison is to be a ';Model Prisoner';.
He can still appeal it, he needs a good lawyer.
Has he appealed his sentence or the verdict?


If the appeal period had ended I don't think that it can go back to court unless new evidence is discovered and a new trial could be ordered.
If he has not filed an appeal by now it is too late to do so. He can still file a 2255. Contact an attorney, a different one than he had before.
Hire an attorney and file an appeal.
There isn't anything that you can do but he can shorten his sentence by keeping his nose clean, taking classes, or attending religious services. He can later as for a sentence reduction but will still probably have to serve at least half of his sentence.