My phone is past warranty but I have read this as a problem common to all Centuras. 1. after 4 weeks, it can't keep time, randomly it will set back 6 hours. 2. I replaced the battery before and after I replaced it, even when fully charged it turns off. Sometimes It takes be 45 minutes to be able to turn it back on, if it does turn on it'll say 0% battery remaining and turn back off. Do you guys replace these phones since these problems are NOT just happening to my Galaxy Centura?