3 After replacing the front display the phone will not turn on
I have replaced the front display of this iPhone 4 and now it is not working. It will not charge and as I brought this on ebay, I have no previous history.
I have used a multi meter on the battery port and this shows no continuous circuit.
However, is this just a case of replacing the logic board and if so, why does the Europe shop not sell any (lol)?
Is there anything else I can check or do?
Update (08/02/2016)
I have further tested the l3 and l4 power fuses on the logic board (below the dock connector) and one of them has a continuous circuit and the other has not. So I guess I need a new board.
1 
Why not try or get someone else to replace the fuse rather than buy a new logic board? This is a cheaper solution and is worthwhile doing.
After all, it's just a fuse so it's worth a try. But the question comes into mind, what blew the fuse firstly?
由 Ben 完成的