i edit the post because the ibb.co maybe die and all the links dead lol
update:
Patch ENG for 287 Classic client KR
https://ibb.co/QCgZ6yk
https://ibb.co/p1Z591K
https://ibb.co/FXYWPB0
https://ibb.co/7nB84SW
https://ibb.co/wpTTvKL
https://ibb.co/WswGMTF
https://ibb.co/CbfvdYB
https://ibb.co/Qk7psWJ
https://ibb.co/VVmxGzF
https://ibb.co/hFYKYJP
https://ibb.co/MN9MYYh
https://ibb.co/h9x5FR5
https://ibb.co/4Z8pDNL
If someone doesn't have the client, they can download from torrent here are 2 versions for the 287 protocol
KR Client 2 VERSIONS G574+G573 torrent
KR Client Torrent