ok so ive had my evo shift less than a year. actiauly this is my second one i got replacement from sprint. and it was a refurbished it had some scratches on it. now im having issues with the phone again and ive taken it to sprint store. they just tell me to update the prl everyday an pull the battery. now when the first phone messed up back in late may shouldnt i have gotten a new phone. with it not beeing a year old even. now they just dont want to even try an help me. do i have to go through sprint to get this htc warranty?