Chosen Solution
Hello guys, i repair connector to LCD on motherboard, but now when i connect battery telefon is not working. But when i connect USB cable to telefon start to apple logo.. this is problém with battery, i know.. but I try three new battery and phone again start only to apple logo with cable.. Do you understand me?. Sorry, i dont speak english Very good.
Plug it in and let it charge. The batteries you are putting in may not have enough power, which is why it starts when you plug in the cable. Let it sit for a while and charge and see if that makes a difference
check for bad solder points with microscope and fix, if that does not solve the problem replace dock connector
