Can this be soldered again or you have to buy a new motherboard
In the photo it looks as if the solder pads on the board were demolished. Thus, the repair should be as good as hopeless and you need a new board.
If it was the motherboard, then it should be a total loss.
Motherboards for laptops are not individually traded, because you have to contact the service of the manufacturer.
Huii, that's hard to say from the photo.
Are the copper pads still on the mainboard off, or were they demolished with the plug together?
If the pads are still intact you can try it with a hot air dryer. Set this to about 200-300 ° c and melt the solder with a weak air flow while pushing the plug back into position. Is very fiddly, but feasible with hobby material and a real ReFlow station costs more than just the motherboard itself. Do not forget to brush the area generously with flux, so that the solder flows beautifully and the individual contacts do not stick together so quickly.
Depends on. Often you can find such items on Ebay. In part, even at good prices.
Depending on how old and popular the notebook was / is.
Congratulation! You have irretrievably shredded the board.
No specialist will fix this for you with warranty.
A hobbyist with more luck than mind can perhaps right the part again.
This comes when you have no idea and flat cable without him trying to open out of the socket tears out.
The pads are torn off
Then it looks bad.
You could now connect every single contact with a thin insulated wire to the nearest device, but that'll be a hell of a hassle.
Many Thanks