Package with BGA

The simple way is to put solder balls on the circuit board, then put the chip, and heat them together to about 300°. The ball melts, then cools down, and the chip is soldered to the board.

If you want to install the chip yourself, go to

"Computer repair shop for chip-level repair", you ask Just ask if there is a BGA packaging machine and let them do it for you. You can’t do it yourself without a machine

As shown in the picture, solder balls and chips