Chip-level repair SHOULD be the norm.
China has been the master at this stuff for a while with institutes like Wantong Training School, Shenzhen etc.
It is a real shame that much of this knowledge is either on Chinese or Russian Internet forums or buried in obscure and unsearchable YouTube videos.
[1]: https://www.youtube.com/channel/UCl2mFZoRqjw_ELax4Yisf6w