Nice video, in Russian but can use subtitles and auto translate.
In short, almost all modern all-in-one notebook CPUs are made such that you can't simply replace CPU as new one won't work, as well as old one won't work in different computer model. All this is made under "security" false reason, but in reality it is made to significantly reduce reparability and, in part, it is responsible for revival of notebook market.
Of course Intel also never sells their notebook CPU to anyone outside very limited vendors list. Yes, despite the claims, it is cartel.
Notice that since 6th generation Intel DOES not sell mobile BGA processors to anyone outside their approved lists of vendors (Most in Taiwan, very few in China and Samsung/LG in Korea).
This move is made to maximally harden notebooks repair and such allow to get extra profits on new items.
Average margin on good i7-i9 notebook processor can reach 1000% only for Intel. Notebook vendor will get another 30-50% on top of this.
Also note that such big BGA chips had been made intentionally and without even proper metal frame.
Move to BGA allows to save few dollars as it is cheaper compared to PGA.
Also, removing PGA socket weakens the CPU area a lot. Many old notebooks not only had PGA socked, but metal plate below it similar to desktop motherboards.
As notebook has much weaker and thinner motherboard and you constantly move it and can even drop many times - such CPUs solder balls frequently fail. Same can be said about thermal issues, as lead free solder is much worse for any BGA chips.
So, now you not only can't change and upgrade your CPU yourself, even service center does not have access to new and good quality CPUs.
The only advantage of such approach is ability to make ultrathin notebooks - idiotic and pointless thing pushed by marketing.
Intel here acts against society needs with tight coordination with Apple, Dell and all main Taiwanese contractors (who make all Apple, HP, Dell notebooks).
Louis on the same thingy - how hard is to get Intel BGA CPUs
Installing such CPUs
It looks like you're new here. If you want to get involved, click one of these buttons!