here is an other diagram and source is gsm srilanka in this diagram we see scratched area and a link from the batter terminal to this point is indicated
with red line so please scratch this area vary carefully and then make this jumpers as indicated in diagram attached with this post.it will hel
in this post i am posting a diagram that will indicate the accurate location of ringer buzzer ic in sony ericsson k310i.so check this area if ringer buzzer is not working in sony ericsson k310i.
wash and clean this area with any electronics cleaner and leave it to dry so that it can be ok.if prob
if you are facing joy stick problem in sony ericsson K310i and joy stick prints are also damage then it is a serious condition what to do
do not worry here is the best solution for you to solve Sony Ericsson K310i Joy Stick Not Working Problem Solution Ways.change joy stick and make these jumper
here is a diagram to solve mic problem in Sony ericsson K310i.so this diagram will help for Sony Ericsson K310i Mic Not Working Problem Solution Ways Track.
check all these components that are encircled with pink line.and make jumper to the resistance where a red line is indicated.
and D501 is t