To install the new screen, install the connector at the top first and dry fit before installing and make sure you align the Button and Camera.

If you are refering to step 6, the fpc connector will need to be soldered to the motherboard.

I always open the tablet and order the cable by part and rev number. you may order a part for a tablet and will most like be sent for a diff version.

The charging port can be replaced, the charge port has some coating holding it down that will need to be removed, i add some low melt de-solder and use a heat gun to remove the charge port then use my solder iron to install the new one.some lift or start to remove the bottom part of the screen enough to remove the buttons that wrap around to the screen and slide the new flex cable and port.

if you have issues removing the rear case use a syringe or droplet and add alcohol around edges after heating rear case, use a tool to lift slightly and add more alcohol if needed, use playing card and slide around edge and applying small amounts of alcohol if needed until rear case is removed.

when replacing the charge port you will need the model/gen number that it is on the part that you will be replacing. mine was JDS-030. disassemble the controller to get to the port and then order the part you need based on the part number and part itself since they are different in size.

did you try another charge port? the small gold piece with a small hole to the right of the charge port is the speaker. step 19

Always disconnect battery and press power button a few times to rid of any power left on device while doing repairs. especially if you are using metal tools.

I just completed the teardown on my Toshiba, very well documented and simple to do if you have the tools described. Thank you for this Teardown.