ive put a few posts about this subject - ringing low volume turned out to be a faulty piezo sounder, unfortunately i got my phone software corrupted as he didnt have a clue so i bought leads and eventually did it myself i upgraded in the end from 5.27 to 5.31 and the signal seems to be holding i had probs with 5.27 full flash with incoming calls still all seems fine now. i'd like to thank the users of this excellent forum for their help, anyone who comes here is assured the best help they can get. many thanks