I'd have to ask, did the face crack or make a cracking sound when it came off? It is possible that the connection was stuck together when you released the face and broke off of one of the sides. It is not uncommon for the connection on a detacheable faced stereo to have springs loaded in the face or on the stereo itself. I'd almost bet that the ground or the power connector came loose and isn't making contact to give the unit power. Anyway, I repair soundstream products and am an authorized dealer. Please give me a call and i could send you my address. I'll look at it for free and give an estimate. If it is something simple, it won't cost you much, but, you have to use the removal tool to get the unit out. I have the connectors here to power it up and see if it works with another face on it anyway.
Our number is 860-484-6106 in the office. If I am out, leave Wendy a message and I'll get back to you. Ask here the shipping address for shipping the product for repair and i will check it out for you. It'll probably be more expensive to ship it than it will for me to fix it just as long as there isn't a bad break on the inner pc board. If it is salvageable, i will let you know regardless.
We also sell the 535T which doesn't have bluetooth, but has the television tuner built in for like 133 bucks new with free shipping. You may wish to consider the purchase and see if the face would work for yours, then, keep carefully taking it off so it never gets stuck permanently. You will have a replacement head unit if it is broken, or, if it breaks after this. The unit does not come with the digital television receiver, but, it controls one, and they sell for an additional $155, which i have in stock as well. Send everybody who loves Soundstream my way, i have tons of their stuff in stock brand new, and I am selling it cheaper than anybody online for every series but the x series. i have a ton of reference amps, tarantula and many other woofers and speakers left as well. HUNDREDS!!! Anyway, check us out on Ebay. Here is the link to the 535T: http://www.ebay.com/itm/291312550816?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649