Galaxy S Dous not charging fix

Samsung Galaxy duos S7562 charging solution 

iphone 3gs no sound in calling only

I found the solution it is really track cut under the copper I remove little from that copper and i scratch slowly until it appear the both track and i connected with very small wire
but all you need is 
1- microscope
2- very sharp blade
3- very thin solder iron
4-and thin wire you can take it from 5310 ear piece .