i got the exact same problem... it worked for a while then it flickers on and off when you hit a bump rite?
i thought it would be some loose connection in the back on the clock but it wasnt... i even took the clock apart... still did the same problem, after a month or 2 it WILL die, cant even flick it to make it turn on... its 100% dead.... basically just us your cell phone for a clock thats what i do now
who doesnt carry a cellphone these days ^_^ hope this helps, if you figure out a solution PLZ inform me thank you