Kyocera 5135 Cell Phone

I have had this phone for just over 2 years and have always really liked it for reception and clarity. However, the phone now powers up with a "service required" message. Even though the Kyocera site says this "may" be fixed with a re-flash, the kyocera service centers indicate the phone cannot be fixed once this message is displayed. I would expect more life than 2 years from a "quality" phone that I purchased. Apparently this problem is quite prevalent - you can find lots of commentary on the web about this problem. Not so impressed anymore ..... I will stay away from Kyocera's from now on.