My friend's phone (ZTE F101) had the miniUSB connector ripped of the board, and when it broke it also pulled the pad. All 5 pads of the connector don't have traces and instead they have micro-vias right in the middle to the inner layers.
We don't care about the USB connectivity, but without the connector the phone can't be recharged, so we are trying to restore the GND and the +5V pins of the connector ignoring D+ and D-. The ground connection was easy to restore by simply connecting it to the ground plane available everywhere, but can't figure out where to connect the +5V.
I found an interesting spot on the other side of the board (relative to the miniUSB connector) where there is a big cap with one end connected to ground, and the other connected to a possibly SOT23-3 diode (marked with "S 5") as seen in the second picture, which made me believe that's where all the juice goes. So I connected to that cap, my little jumper wire connected to the +5V from the miniUSB connector, but it didn't work. The phone does not indicate that is charging the battery.
Does anyone have any idea what else to try, or recognize any voltage regulators in the picture?
The only things I can advise in this are as follows: